FORESTRY. 955 



her of the finer specimens. Numerous specimens of Pnn/.s sah!n!<ni<i, 

 and P. ponderosa are now more than lOO feet in height, with trunks 

 from 8 to 11 feet in circumference. Specimens of Sequoia gigantea 

 and S. semperiiirens are from 80 to 90 ft. in height and from -4 to 5^ 

 feet in circumference. A native cotton wood planted in 1856, at the 

 time of this report was 100 ft. high and the circumference of the trunk 

 was 16 ft. Notes are given on the present size of a number of other 

 species. The climatic conditions shown l)y records kept at the station 

 since 1885 are given, together with notes on the more recent additions 

 to the arboretum. Statistics are given on the rate of tree develop- 

 ment in which are shown the rate of growth of a large number of 

 coniferous and deciduous trees. Experiments have been conducted on 

 the planting of various oaks, principallj' the English oak {Quereits 

 jjedunculata). The results obtained seem to indicate that in the cen- 

 tral Sacramento Valley the planting of oaks for timljer might prove 

 profitable. Next to the oaks, difi'erent varieties of ash promise the best 

 results as hard wood forest trees. An account is given of the willow 

 collection at the Chico Station, in which the characteristics and rate 

 of growth of the 15 best species are shown. Descriptive notes are also 

 given on a luimber of species of Eucalyptus and Acacia at the Chico 

 Station. 



Among the more interesting statements regarding the Santa Monica 

 Station are the notes showing the efi'ect of drought on difl^erent trees. 

 The deficient rainfall for two successive years served to indicate the 

 more hardy species of trees adapted to that region. A list is given of 

 60 species of the Eucalyptus in cultivation at the Santa Monica Sub- 

 station in 1899. Illustrative and descriptive notes are given on a few 

 species of Eucalyptus, Acacia, and other trees. 



Forest reserves, H. Gannett {Twentieth Ann. Rpt. U. jS. Geol. 

 Survey ., ISOS-OD., pt. 5, p>p. Jfi8^ p>ls. 159., figs. 2). — This report contains 

 a review of the forests of the United States, by the author, together 

 with detailed reports on some of the forest reserves in the western 

 United States. Descriptions are given of Pikes Peak, Plum Creek, 

 and South Platte reserves, by J. G. Jack; the White River Plateau 

 and Battlement Mesa reserves, by G. B. Sud worth; the Flathead Forest 

 Reserve, by H. B. Ayers; and the Bitterroot, San Gabriel, San 

 Bernardino, and San Jacinto reserves, by J. B. Leiberg. During the 

 year covered h\ this report 11,000 square miles were added to the 

 forest reserves, the present area devoted to that purpose being 72,139 

 square miles. This area is composed mostly of mountainous, rugged 

 country, of little or no value for agriculture, but especially favor- 

 able to tree growth. Abstracts are given of the reports on difi'erent 

 forest reserves, in which the area, the general condition, and permanent 

 species of trees are descril)ed. The relationship of forest fires and 

 grazing to forest problems is discussed by the difi'erent authors at 

 some length. 



