Operator's manual for swimming pools. See Perkins, Ralph Newton.

Operator's manual, Lycoming model O-235-C aviation
engine. See Aviation corp. Lycoming div.
Operator's manual, Lycoming model O-435-A
aviation engine. See Aviation corp. Lycoming.
div., Williamsport, Pa.

Operator's manual, 1946 Ford heavy duty trucks.
See Ford motor co.

Operator's manual, 1946 Ford passenger car, models
65A and 6GA. See Ford motor co.
Operator's manual, 1946 Ford rear engine bus model
69B. See Ford motor co.

Operators manual, 1946 Lincoln model 66H. See
Ford motor co.

Ophthalmic mechanics. See Waters, Earle H.

Optimum rate of carbon elimination in open-hearth furnaces of different capacities. See Bulavkin, A. M Optometric extension program. Optometric extension program material. Feb.-Dec., 1946, v. 6, no. 4, Jan., 1547. 1946. 1-23, 2-21, 3-22, 4-24, 5-27, 6-24, 7-24, 8-27, 9-27, 10-25, 11-22, 12-9; E. B. Alexander, d. b. a. Optometric extension program, Duncan, Okl.; AA 2803, 5528, 8003, 11257, 12819, 16548, 16601, 17688, 18657, 30759, 31321, 31735.

Osborn, Ronald E. See Osborn, G. Edwin.

Osborn life insurance co., inc., Shreveport, La. 5 year payment life policy. folder. 8-27-46; AA 25401.

3 year payment life policy. folder. 8-27-46; AA 25400.

24 monthly payment life policy. folder. 8-27-46 AA 25402.

Osborne co., Clifton, N. J.

The garden calendar for 1947. 32 p. 1-14-46; AA 1896.

Handy home hints calendar for 1947. 32 p. 114-46; AA 1898.

Home and health! 32 p. 1-14-46; AA 1897.

The homemaker's companion for 1947. 24 p. 114-46; AA 1895.

Madonna with child. calendar. 1-14-46; AA 1894.

1947 homemakers' calendar, by Grace F. Brewster. 23 p. 1-14-46; AA 2031.

The Osborne farmer's calendar for 1947, by R. W.
Sherman. 23 p. 1-14-46; AA 2030.
The Osborne protestant calendar for 1947, by
Grace F. Brewster. 24 p. 1-14-46; AA 1899.

Osborne equipment co. See Associated equipment distributors.

Osburn, Bernice B. Home craft course in Pennsylvania German spinning and dyeing ... Drawings by Burl N. Osburn. [Vol. XVI] Plymouth Meeting, Pa., Mrs. C. Naaman Keyser, 1945. pamphlet. © 12-18-45; Willow Street, Pa.; AA 1686.

Osburn, Burl N. Home craft course in bookbinding v. 21. Plymouth Meeting, Pa., Mrs. C. Naaman Keyser, [c1945] pamphlet. 12-15-45; Willow Street, Pa.; AA 1687.

Osburn, Burl N. See Osburn, Bernice B.

Osceola, Polk, Shelby and Stromsburg telephone directory. See Lincoln telephone & telegraph co.

Oschry, Leonard, 1914- The story of the Vilna
Gaon. 41 p. 4-5-46; Torah Umesorah, New York;
AA 22456.

Oscillators. See Hollywood radio & television institute; Industrial training institute, inc.

Osco motors corp. How to do it; dealer displays of Osco marine engines sold through you financed through us. pamphlet. 3-2-46; Philadelphia; AA 10233.

Osenbach, Elmer William, 1887- Know your real estate... 3 p. 9-15-46; Allentown, Pa.; AA 27626.

Osgood, Cornelius, 1905- Linguistic structures of native America [by] Harry Hoijer, L. Bloomfield, M. R. Haas [and others]. 423 p.6-24-46; Viking fund, inc., New York; AA 20579.

Osgoodby, Reginald Decker, 1904- At-em-bom invitation. card. 4-22-46; Evanston, Ill.; AA 19780.

O'Shaughnessy, Martin Edward, 1918- How to

break into politics. 96 p. 9-10-46; Chicago, 27842.

Oshkosh telephone directory. See Wisconsin tele«, phone co.

Osipov, K. A. Structure and properties of titaniusalloyed high speed steels (1). 91. 2-1-46; Henry Eric Brutcher, Altadena, Calif.; AA 16393.

Oskaloosa telephone directory. See Northwestern Bell telephone co.

Oslund, Herbert D. Music in minutes; directions. 5 sheets. 10-19-45; Minneapolis; AA 1421.

Osmer, Lily. Star gleams. 316 p. 3-1-46; El Monte, Calif.; AA 7883.

Osorno, Luz María Borja. Estás en tu casa; [or] At home in Mexico, by L. M. B. Osorno, Donald B. Watt and Paul Harris, jr. 59 p. 5-3-46; Experiment in international living, Putney, Vt.; AA 19463.

Osten, Charles, Mrs. See Osten, Ella.

Osten, Ella. Working for Jesus; a Children's day service by Mrs. Charles (Ella) Osten. 15 p. © 4-20-46; Wartburg press, Columbus, O.; AA 19283.

Osten, Ella M. Our primary children

Teacher's guide, primary II, third quarter. 64 p. 5-16-46, Christian growth press, Philadelphia; AA 19115.

Osteomyelitis. See Key, J. Albert.

Osteopathy as a career. See Belleau, Wilfrid Emmanual.

Oster (John) mfg. co. Massage with Oster massagett. 23 p.9-27-46; Racine, Wis.; AA 30422.

Ostlin, Frank. What every veteran should know. 9th annual revision. Issue, 1946. ©4-22-46; Moline, Ill.; AA 12070.

Ostrey, Joseph Method, d. b. a. Jay Method, publisher. See Method, Jay, publisher.

Oswald, Clyde D. Calcurator. card. ©1-29-46; San Bernardino, Calif.; AA 5052.

Oswald the rabbit. See Kelly, Walt.

Otford von Weissenburg: narrator or commentator? See McKenzie, Donald A.

Othello, the Moor of Venice. See Shakespeare, William.

Other moons. See Elliott, Ellen Coit.

Other people's needs and desires are important. See Hall, Clifton W.

Other sheep. See Kaltenbach, Babette.

Otis, Arthur Frederic. Christmas songs and other verse... With illustrations by William Savin, Harold C. Mundstock, George S. Lyman, Francis X. O'Berne