846 EXPERIMENT STATION RECORD. 



able percentage of 7 to 9 in. bulbs is found wliere good attention has been 

 given. The crop is ready for harvesting early in August. The smaller bulbs, 

 vi^hen replanted soon after being harvested, grow much better than the imported 

 material. 



In the tests conducted in California during the past 3 seasons the best 

 success was obtained with seedlings from crosses of the red-stemmed Lilium 

 longiflormn gUjaiitcum with L. loiigifloruin harrisii. These seedlings are com- 

 l)osed of four distinct types, long-leafed and short-leafed greeu-steumied iilants 

 and long-leafed and short-leafed red-stenmied plants. All show a remarkable 

 freedom of bloom and in some localities are totally free from disease. The text 

 Is accompanied with plates and figures illustrative of the work being conducted 

 in California. 



The rose and the essence of roses {Bui. Mens. Off. Renseig. Agr. [Paris], 

 {1901), No. 0, PI). 1011, 1012). — A brief report by the French consul at Phillp- 

 popoli on rose culture and the manufacture of the essence of roses in eastern 

 Roumelia. 



FORESTRY. 



British trees, R. V. Cole {London, 1901, vols. 1, pp. 360, pis. 103, figs. 120; 2, 

 pp. 361 +VII, pis. 16, figs. 131). — In this work the author traces the life histo- 

 ries of all the important British trees. In all 430 reproductions of original 

 drawings and paintings by the author accompany the text, consisting of draw- 

 ings of one whole tree in each species and of the parts of the tree separately in 

 the various stages of growth. 



The work is intended as a book of reference for artists, designers, and land- 

 scape students, as well as to furnish to the lover of trees more accurate knowl- 

 edge of their growth and character. 



Our trees and how to know them, C. Kirk {London, 1901, pp. 68, figs. 60). — 

 This book is made up of GO photographs of the more common forest trees of 

 Great Britain, showing the branch and in most cases the fruit. The common 

 and botanical names are given, together with some short notes by A. L. Gowans, 

 designed to assist the reader in identifying the trees. 



Big trees of California, G. Clark {[Rcdondo, Cal.], 1901, pp. 10/,, pis. 20).— 

 A poitular illustrated account of the big sequoias of California, including their 

 origin and distribution, size, age, habits and characteristics, cones and seeds, 

 and reproduction, together with descriptions of the Sequoia National parks and 

 celebrated si)ecimens. The text concludes with the botanical nomenclature of 

 the sequoia. 



Forest tables for western yellow pine, E. A. Ziegleb {U. S. Dcpt. Agr., 

 Forest, tirrr. Circ. 121, pp. 23). — A total of 22 stand, height, growth, volume, 

 and form tables are given for western yellow pine, including Flints pondvrosa 

 proi>er, the variety scopulortnn, and V. jcffregi. These species are classed 

 together, since the distinction is too slight to affect materially the form and 

 growth tables. The data used in comiuling these tables were collected by field 

 parties in connection with various projects in several of the Mational Forests 

 in the West, and although not gathered according to a set plan are consid- 

 ered sufficient for the immediate requirements of exploitation and forest man- 

 agement. The widely varying factors of temperature and rainfall in differ- 

 ent parts of the western yellow^ pine region show a corresponding variation in 

 the tree development. 



Based upon the difference in growth and form three regions are recognized: 

 (1) the isolated Black Hills region; (2) Arizona. New Mexico, southern Colo- 

 rado, and the lower and drier mountains of southern California ; and (3) north- 

 ern California, Oregon, Washington, and the moister parts of jNIontana. In the 



