A. THE NATURE GUIDE ILLUSTRATES THE LIFE OF A BIG TREE.

The space between the guide's forefinger and thumb measures the span of a long human life to compare with the span of this tree's life.

hausted and our supply of the others is very low. Had our printing fund been sufficient we could have profitably disposed of double the number printed.

Such heavy demands for the rules and regulations booklets have been made on the Washington office by different organizations that we now have a mailing list of automobile clubs, highway associations, chambers of commerce, travel bureaus, etc., all over the United States, to which we send supplies of the pamphlets as they are issued. These are used in furnishing tourists information regarding tours of the national parks. This feature is so popular that we are unable to adequately meet requests for the booklets.

A supplement to the Grand Canyon rules and regulations, "Summer Trips, Grand Canyon National Park," was printed privately and donated to the service as an official publication. This pamphlet proved very popular and the 35,000 copies printed are practically all distributed.

The Manual for Motorists, Yellowstone National Park, was reissued and an edition of 18,000 printed; while 32,000 copies of the Manual for Railroad Tourists, Yellowstone National Park, were issued. These manuals are very popular with tourists to the park.

Fishes of the Yellowstone National Park, by Hugh M. Smith and William C. Kendall, was rewritten by its authors and published by the Bureau of Fisheries of the Department of Commerce. It is sold by the Superintendent of Documents for 5 cents a copy.

The demand for the fourth edition of the National Parks Portfolio has been so great that the Superintendent of Documents is now reprinting it. The Portfolio, bound in cloth, sells for $1. It is undoubtedly one of the most popular of Government publications.

The Geologic Story of Rocky Mountain National Park, by Willis T. Lee, is also being reprinted by the Superintendent of Documents. The price of this book is 30 cents.

Our park superintendents report largely increased sales of special park pamphlets sent them by the Superintendent of Documents, visitors taking an unusual interest in them. Topographic maps of the parks are also supplied to the superintendents, for sale, by the United States Geological Survey. Receipts from these sales are made direct to the Superintendent of Documents and the Geological Survey.

It has not been possible to publish a number of important manuscripts the service has accepted, mentioned in the last report, because of lack of funds. Each of these should be printed as soon as possible, as they will be valuable additions to the literature already published on the national parks.

SAVE THE REDWOODS MOVEMENT.

The movement to save for posterity a fair representation of the finest stands of Sequoia sempervirens, one of two species of California redwood, has made distinct headway during the past year. Approximately half a million dollars, made available through State and county appropriations and private subscriptions, have been applied to this object in 1921 and 1922. This has resulted in the establishment in Humboldt County of the Humboldt State Redwood Park, a

12-mile stretch bordering the State highway in the basin of the south fork of the Eel River and comprising approximately 2,000 acres. This movement is sponsored by the Save the Redwoods League, whose aim it is to save as complete a stretch of redwood timber along the highways as is feasible and also to bring about the establishment by the Federal Government of a redwood national park, comprising at least 20,000 acres of primeval redwood forest.

It is interesting to note that the original redwood belt comprised in round figures 1,500,000 acres and that already approximately onethird of this area has been logged. The timber has been cut at a rate averaging 6,500 acres per year and it has been estimated that with the normal increase in cutting the present redwood forests will last between 100 and 150 years. However, within a very few years from now the finest of the redwoods accessible to the public will have been cut unless plans to save some of the finest stands are carried out. In the 20 years prior to 1921, less than 1,000 acres had been saved. In 1901 the California State Redwood Park in the big basin, Santa Cruz County, comprising 3,700 acres, was established. In addition to this reserve fine groves of redwoods have been saved in the Armstrong grove, purchased by Sonoma County; in Muir Woods, donated by Mr. Kent as a national monument; in the Bohemian grove in Sonoma County, and in the privately-owned Santa Cruz grove which, although not publicly owned, is in little danger of destruction. because it has been found that standing as an object of interest these giant trees are far more valuable than they would be if cut into Iumber.

The revival of activity toward the saving of the redwoods was the result of the construction of the California State highway through the northern portion of the redwood belt. Particularly in Mendocino and Humboldt Counties this highway made the finest stands of timber accessible to lumber operators and at the same time made it possible for motorists to reach these groves with convenience and comfort. The creation of the Humboldt State Redwood Park along the State highway in the basin of the south fork of the Eel River is the beginning of a movement which has as its ultimate goal the preservation of timber throughout the stretch of highway that traverses the redwood belt.

DEVELOPMENT OF NATURE STUDY.

Aside from the distinctly recreational aspect of the national parks, lovers of nature find them prolific fields for investigation and observation. They have been variously termed "outdoor universities," "museums of nature," and the "naturalist's paradise." Students of zoology, botany, ornithology, geology, and many other branches of biological and physical sciences find in them unsurpassed advantages for study. Students usually arrange for undisturbed and leisurely enjoyment and study by themselves, without supervision or desire for guidance. Observing, however, an eager and awakening interest in the natural exhibits on the part of the average park visitor, the service, to create and further stimulate this interest, has been gradually expanding and enlarging, with the cooperation of the State universities whenever possible, the free nature guide work.