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Models showing typical in the development of the

human embryo. Department of Embryology, Carnegie Institution of Washington.

In addition to these papers the Ecological Society of America contributed the following papers to the joint program held on the evening of December 27:

The hydrogen ion concentration of the sea water

of Puget Sound and the reactions of the herring (Clupea pallasii Cuvier) to hydrogen concentration in sea water: EDWIN B. POWERS, Colorado College.

The PH of Puget Sound in the vicinity of Friday Harbor varies with other conditions, tides, depths and locality. The herring reacts positively to a PH of 7.9 to 8.0. The reaction is positive to this PH concentration both from a lower and a bigher PH. Ecological investigations under the federal gov

ernment: HARRY C. OBERHOLSER, National Mu

Paper from the Bureau of Fisheries: Dr. Hugh Smith.

Discussion led by Professor H. B. Ward, University of Illinois.

Paper from the Bureau of Animal Industry: Dr. B. H. Ransom.

Discussion led by Professor Herbert Osborn, Ohio State University.

Paper from the Biological Survey: Dr. E. W. Nelson.

Discussion led by Professor R. K. Nabours, Manhattan, Kansas.

Plans of National Research Council for advancing American Research: Dr. J. C. Mer m, vicechairman, National Research Council.

Concluding discussion and proposal of definite plans: Professor C. E. McClung.

The proceedings of the conference will be published in full in a later issue of SCIENCE.


The most important ecological investigation under federal government auspices are carried on as a basis for other work, and are of far-reaching importance. The Fish Commission studies the relation of fishes to their environment; the Forest Service that of trees; the Bureau of Plant Industry of various other plants, particularly with regard to plant diseases and plant introductions; the Bureau of Animal Industry, the life history of internal animal parasites; the Bureau of Entomology, the life history of insects in their relation to economic problems; and the Biological Survey, the relations of animals, birds and other animals to their environment and to each other, for the determination of the life zones of distribution. The distribution of the internal parasites of the

fish and other aquatic vertebrates of Oneida Lake, New York: HENRY S. PRATT, Haverford College.

An important feature of the meeting was the conference between government and laboratory zoologists on Saturday afternoon. Subject: Methods of securing Better Cooperation between Government and Laboratory Zoologists in the Solution of Problems of General or National Importance; Professor C. E. McClung, presiding.

Papers on plans and problems of the Bureau of Entomology that can be furthered by cooperation with laboratory zoologists: Dr. L. 0. Howard.

Discussion led by Professor J. C. Needham, Cornell University.


ZOOLOGY THE Convocation Week meetings of Section F were held in conjunction with those of The Society of American Zoologists at Baltimore, Maryland, December 26–28.

At the business session, Bennett M. Allen, Lawrence, Kansas, was elected member of the council; J. H. Gerould, Hanover, N. H., was chosen member of the General Committee; Herbert Osborn, Columbus, Ohio, was reelected member of Sectional Committee for five years, and W. M. Wheeler, Bussey Institution, was elected vice-president of the section for 1919.

In the absence of the secretary H. V. Neal in Y. M. C. A. service in Italy, the secretary of the zoologists, W. C. Allee, Lake Forest, Ill., acted as secretary for the meeting. W. C. ALLEE,



A Weekly Journal devoted to the Advancement of Science, publishing the official notices and proceedings of the American Association for

the Advancement of Science

Published every Friday by THE SCIENCE PRESS LANCASTER, PA.


Entered in the post-office at Lancaster, Pa., as second claw matter

Cornell University Medical College Washington University

in the City of New York

School of Medicine

Session begins in September


Candidates for entrance are required to have completed at least two full years of college work which must include English, German, and instruction with laboratory work in Physics, Chemistry and Biology.

Admits holders of Baccalaureate degrees or

seniors who can present a degree at the completion of the first year. All students must have completed College courses in

Physics, Chemistry and Biology. Graduate Courses leading to the degrees of

A.M.and Ph.D. are offered in the scientific
departments of the Medical College under
the direction of the Graduate School of

Cornell University.
Fees including all College charges do not ex-

ceed $200 a year.

INSTRUCTION Instruction begins on the last Thursday in September and ends on the second Thursday in June. Clinical instruction is given in the Barnes Hospital and the St. Louis Children's Hos pital, affiliated with the modical school, the St. Louis Cty Hogpital, and in tho Washington Univerzita Dispens). COURSES LEADING TO ACADEMIC

DEGREES Students who have taken their premedical work in Washington University, are eligible for the degree of B.S. upon the completion of the first two years of medical work.

Students in Washington University may pursue study in the fundamental medical sciences leading to the degree of A.M. and Ph.D.

TUITION The taltion fee for under graduato medical students is 2900 per aanura. Women are admittad.

The catalogue of the Medical School and other information may be obtained by application to the Dean.

For further information and catalogue address


Cornell University Medical College

(Department B.) First Ave. & 28th St. New York City

Euclid Avenue and Kingshighway St. Louis

Tulane University of Louisiana Johns Hopkins University


Medical School

(Established in 1834) The Medical School is an Integral part of the University and is in close Afiliation with the Johns Hopkins Hospital ADMISSION

School of MedicineCandidates for admission must be graduates of approved

After January 1 1918, all stujents entering the colleges or scientific schools with at least one year's instruction, including laboratory work, in physics, chemistry, and biology,

Freshman Class will be required to present credits and with evidence of a reading knowledge of French and for two years of college work, which must include German.

Biology, Chemistry and Physics, with their laboraEach class is limited to 90 students, men and women being admitted on the same terms. Except in unusual circumstances,

tories, and one year in German or French. applications for admission will not be considered after July 1st. Graduate School of Medicine

I'vacancies occur, students from other institutions desiring advanced standing may be admitted to the second or third year,

A school for physicians desiring practical clinical provided they fulfill all of our requirements and present ex. opportunities, review, laboratory technic or cadaceptional qualifications.

veric work in surgery or gynecology. Excellent INSTRUCTION

facilities offered in all special branches.

School of Pharmacy-
The academic year begins October first and closes the last
Tuesday in June

The course of instruction occupies four Admission: Three years of high school work, or years, and especial emphasis ia laid upon practical work in the 12 units. Two years for Ph.G. degree. Three laboratories, in the wards of the Hospital and in the Dis

years for Ph.C. degree.

School of Dentistry-

Admission: Four years of high school work, with The charge for tuition is $250 per annum, payable in three 15 units. Thorough, practical, as well as compreinstalments. There are no extra fees except for rental of microscope, certain expensive supplies, and laboratory breakage.

hensive technical training in dentistry.

Women admitted to all Schools on the same terms The annua! announcement, application blanks, and circular as men. describing graduate courses may be obtained by addressing the Doan of the Johns Hopkins Medical School

For catalogs and all other information, address Washington and Monumont Sta. BALTIMORE, MD. TULANE COLLEGE OF MEDICINE

P. O. Box 770, New Orleans, La.


1765 School of Medicine of the University of Pennsylvania


The One Hundred Fifty-third Annual Session of this institution will open September 27, 1918, and continuo

until June 18, 1919. The First and Second Year Classes are ordinarily limited to 100 students; during the period of the war this limitation will not be strictly enforced. Application for admission should be in the hands of the Dean before July 1st.

REQUIREMENTS FOR ADMISSION: Candidates must have successfully completed the work prescribed for the Freshman and Sophomore Classes in colleges recognized by this University, which must include at least one year of college work in Physics, General Biology or Zoology and Chemistry (Qualitative Analysis is required; Organic Chemistry is recommended, and in 1919 will be required), together with appropriate laboratory exercises in each of these subjects, and either French or German of more than elementery grade. For detailed information send for catalogue.

UNDERGRADUATE COURSE: The course of instruction extends over four annual sessions, the work so graded that the first and second years are largely occupied by the fundamental medical subjects. The third and fourth years are largely devoted to the practical branches, prominence being given to clinical instruction, and the classes sub-divided into amall groups so that the individual students are brought into particularly close and personal relations with the instructors and with the patients at the bedside and in the operating room. After graduation further hospital work is undertaken by the members of the clase; and more than 90 per cent. attain by competitive examination or by appointment positions as internes in hospitals in this city or elsewhere. The Pennsylvania Bureau of Medical Education and Licensure requires of applicants for license a year spent in an approved hospital.

POST GRADUATE WORK: (1) Any graduate possessing a baccalaureate degreo may purgue work in Anatomy, Physiology, Physiological Chemistry, Bacteriology, Pathology, Pharmacology, Research Medicine and Mental Diseases with view of obtaining the bigher degrees of Master of Arts or Science and of Doctor of Philosophy in the Graduate School of the University. For information address Dean of Graduate School, University of Pennsylvania.

(2) Courses in Publio Hygiene (inaugurated in 1906) leading to diploma (Doctor of Public Hygiene, Dr. P.8.), are open to graduates in medicine who have had a preliminary education similar to that required for admission to the Medical School. The subjects comprebended in the course are: Bacteriology, Medical Protozoology and Entomology, Metazoan Parasitology Chemistry,

Sanitary Engineering, Sanitary Architecture, Meat and Milk Inspection, School Inspec tion, Vital Statistics, Sanitary Legislation, and Personal and General Hygiene.

The full course extends over one academic year. Special subjects in the course may be taken by any one possessing suitable preliininary qualifications. For details address Director of Laboratory of Hygiene.

(3) From the opening of each term to about February 1 courses in Tropical Medicine are open to graduates in Medidine, comprehending instruction in Medical Climatology and Geography, Hygiene of Tropics and of Ships, Tropical Medicine, Bacteriology, Protozoology, Entomology, Helminthology, and General Medical Zoology, Pathology, Skin Diseases, Eye Diseases, and Burgery of Tropical Affections.

(4) During the academio session special courses in any of the branches of the monical curriculum are open to graduates of this or other regular schools of Medicine, both in the clinical subjects and in laboratory studies. The excellent hospital facilities offered by the University Hospital, the neigbboring, Philadelphia General Hospital and other institutions with which the members of the staff of instruction are connected, guarantee exceptional opportunities for clinical observation.

TUITION FEE: Undergraduate study, $200 annually ; fees for special courses on application. For detailed information or catalogue address

DEAN OF SCHOOL OF MEDICINE University of Pennsylvania

Philadelphia, Pa.

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The Fourth

is clinical. Students spend th entire fore

noon throughout the year as clinical clerks Year Course in hospitals under careful supervision. The

clinical clerk takes the history, makes the
physical examination and the laboratory
examinations, arrives at a diagnosis which
he must defend, outlines the treatment
under his instructor and observes and
records the result. In case of operation or
of autopsy he follows the specimen and
identifies its pathological nature.

Two gen-
eral hospitals, one of which is owned and
controlled by the University, one special
hospital and the municipal hospitals and
laboratories are open to our students. The
afternoons are spent in the College Dispen-
sary and in clinical work in medical and

surgical specialties and in conferences. Summer School-A summer course in pathology covering & period of six weeks during June and July will be given in case there is a suficient number of applicants.


Sixty-first Annual Session begins Sep-

tember 22, 1919
The medical college requires two
years of study in a college of liberal
arts or sciences for admission.

See specifications for Class A Medi-
cal Colleges by the Council on Medi-
cal Education, A.M.A.; also those for
a Medical Student's Qualifying Certi-
ficate by the University of the State
of New York.
Conditioned Students not admitted

For particulars address


Henry and Amity Streets

New York

Address the Secretary of the College, 307 Orange Street


Rush Medical College

Marine Biological Laboratory

Woods Hole, Mass.


The University of Chicago

INVESTIGATION Facilities for rescach in Zoology.

Embryology, Physiology and BotCurriculum.-The fundamental branches (Anatomy, Physiol

Eatiro Yoar

any. Seventy-six privato laboraogy, Bacteriology, etc ) are taught in the Departments of

tories, $100 each for not over three Science at the Hull Biological Laboratories, University of

months. Thirty tables are availChicago. The courses of the three clinical years are given

able for beginnersi n research who in Rush Medical College and in the Presbyterian, the

desire to work under the direction Cook County, The Children's Memorial, the Hospital for

of members of the staff. The fee Destitute Crippled Children, and other hospitals

for such a table is $50.00. Classes Limited - The number of students admitted to each

class is limited. Applications for admission nest Autumn INSTRUCTION Courses of laboratory instruction quarter should be made nou.

with lectures are offered in InverteHospital Year:- The Fifth Year, consisting of service as an

July 2 to August 12, brate Zoology. Protozoology Eminterne under supervision in an approved hospital, or of


bryology Physiology and Morphadvanced work in one of the departments is prerequisite

ology and Taxonomy of the Algae. for graduation.

Each course requires the full time Summer Quarter.— The college year is divided into four

of the student. Fee, $50. A lecture quarters, three of which constitute an annual session.

course on the Philosophical Aspects The summer quarter, in the climate of Chicago is advan

of Biology and Allied Sciences is

also offered. tageous for work. Elective System.-A considerable freedom of choice of courses and instructors is open to the student.

SUPPLY Animals and plants, preserved, livGraduate Courses.- Advanced and research courses are


ing, and in embryonic stages. Preoffered in all departments. Students by attending summer

served material of all types of quarters and prolonging their residence at the University Open the Entire Your

animals and of Algae, Fungi, Liverworts and

Mosses furnished for of Chicago in advanced work may secure the degree of A.M., S.M., or Ph.D, from the University.

clasgwork, or for the museum. LivPrize Scholarship.-Six prize scholarships-three in the first

ing material furnished in two years and three in the last two (clinical) years--are

ordered. Microscopic slidesin Zoolawarded to college graduates for theses embodying original

ogy, Botany, Histology. Bacteriolresearch.

ogy. Price lists of Zoological and

Botanical material and Microscopic The Winter quarter mences January 2, 1918.

Slides sent on application. State

which is desired. For price lists and TUITION-$60.00 per quarter, no laboratory fo...

alli nformation regarding material,

address Complete and detailed information may be secured by addressing

GEO. M. GRAY , Curator, Woods Hole, Mass. THE MEDICAL DEAN

The annual announcement will be sent on application to The The University of Chicago

CHICAGO, ILL. Director, Marine Biological Laboratory, Woods Hole, Mass.

season as

University of Georgia

University of Alabama


Augusta, Georgia

School of Medicine

Mobile, Alabama

Entrance Requirements The satisfactory completion of two years of study, in an institution of collegiate grade, to include Biology, Chemistry, Physics, and a reading knowledge of French or German. In addition to four year High School diploma.

Combined Course The Combined Course which is now offered by the University in connection with its Medical Department gives to the student the opportunity of obtaining the B.S. and M.D. degrees in six years. This course is recommended to all intending students.

The equipment of the schoolis complete. The clinical facilities ample. Eight full time teachers.

For catalog and any desired information,
Tucker H. razer, M.D., Dean

School of Medicine
St. Anthony and Lawrence Sts.,


ENTRANCE REQUIREMENTS The successful completion of at least two years of work including English, Physics, Chemistry, and Biology in an approved college. This in addition to four years of high school.

INSTRUCTION The course of instruction occupies four years, begin. ning the second week in September and ending the first week in June. Tho first two years are devoted to tho fundamental sciences, and the third and fourth to practical clinic instruction in medicine and surgery. All the organized medical and surgical charities of the city of Augusta and Richmond County, including tho hospitals, are under the entire control of the Board of Trustees of the University. This agreement affords & large number and variety of patients which are used in the clinical teaching. Especial emphasis is laid upon practical work both in the laboratory and clinical do partments

TUITION The charge for tuition is $150.00 a year except for residents of the State of Georgia, to whom tuition is free. For further information and catalogue address

The Medical Department, University of Georgia


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