

AM) [RRIGATION 



July 



increase, . the turpentine operator 



evi LSOn to treat his timber care- 



fully. Formerly it was an easy mat 

 trr for an operator to work hazily 

 through a place-, then niovi- a short 

 distance and develop a new place on 

 timber just a-, inexpensive as that on 

 which he had been working. I'ut now 

 the operator knows that when bis pres- 

 ent location is exhausted he is certain 



to experience difficulty in finding a 

 new location, and equally certain that 

 a largely increased price must be paid 

 for it. This natural operation of the 

 law of Mipply and demand is rapidly 

 bringing serious and earnest thought 

 to the question of how best to preserve 

 the present holdings. The cup and 

 gutter system with its great economies 

 is doing much to solve the problem. 



RECENT PUBLICATIONS 



Manual ot the Trees of North America. 

 I'.y Charles Sprague Sargent, Pp. 826. 

 Illustrated with plates by Charles Edward 

 I'.ixon. Price, $6.00 net. Houghton, 

 Mifflin & Co., Boston. 

 Professor Charles Sprague Sargent has 

 done a valuable service not alone for scien- 

 tists, but for all those who are interested 

 in outdoor life, by the publication of his 

 "Manual of Trees." Up to the present 

 time the author has appealed only to those 

 who have made a special study of trees 

 and shrubs; his monumental work, 'The 

 Silva of North America," being the greatest 

 work on the subject ever published. But 

 in this manual, he has set forth the general 

 facts pertaining to the study of trees, their 

 descriptions and uses, in a way which will 

 appeal to the general public. 



Persons traveling in Florida, California, 

 or Canada will find it an interesting book 

 to take along with them as a guide to the 

 trees. Persons having country estates will 

 find a genuine need for the volume, which 

 will immediately be given a place similar 

 to that held by Gray's Botany. 



The Manual contains brief descriptions 

 in plain and simple language of about 630 

 trees, accompanied by a figure of the leaves, 

 fruits and flowers of each tree, with keys 

 leading to a ready determination of the 

 genera and species. It makes available in 

 convenient form the most essential points 

 of the information to be found in the "Silva 

 of North America," and will be indispensa- 

 ble to every one interested in nature, to all 

 teachers, to the owners of country places, 

 landscape-gardeners, park superintendents, 

 foresters, and lumbermen. 



Type Studies from U. S. Geography. By 

 Charles A. McMurray, Ph. D. Pp. 288. 

 Illustrated. Price, 50 cents. Macmillan 

 & Co., New York. 



This volume contains twenty-five type 

 studies in United States geography ar- 

 ranged in an interesting and instructive 

 manner. Among the subjects treated are 

 chapters on forests, lumbering and irriga- 



tion. It is a volume that should help many 

 to a better understanding of this country's 

 resources. 



The Tree Doctor. By John Davy. Pp. 

 87. Illustrated with half-tones from 

 photos. Saalfield Publishing Co., Akron, 

 Ohio. Price, $1.00. 



This book is what the title indicates, a 

 treatise on tree surgery, which gives many 

 points worth knowing on the care of trees. 

 It is handsomely and appropriately illus- 

 trated with nearly two hundred half-tones. 

 There is also a fatherly lot of moralizing in 

 different parts of the volume, and altogether 

 it is a useful, though peculiar, book. Such 

 a well printed volume deserves a better 

 binding. 



Official Proceedings of the Twelfth Na- 

 tional Irrigation Congress, El Paso, 

 Texas, November 16-18, 1904. Pp. 442. 

 Illustrated. Published by Guy E. Mitch- 

 ell. Galveston, Texas: Clarke & Courts, 

 IQ05- 



This is the complete official proceedings 

 of the Twelfth National Irrigation Con- 

 gress the most successful and widely at- 

 tended convention in its existence. There 

 is a vast amount of matter contained in 

 the volume of practical value to all, but 

 it should especially appeal to the westerner, 

 the forester, the irrigator. the farmer, the 

 stockman, and citizen of the arid and semi- 

 arid half of our country. 

 Third Annual Report of the Reclama- 

 tion Service, 1903-1904. F. H. Newell, 

 Chief Engineer. House Document No. 

 28. Pp. 644. Washington, D. C, Gov- 

 ernment Printing Office, 1905. 

 In the first annual report of the Reclama- 

 tion Service, issued November 29, 1902, a 

 brief description of the location of the arid 

 lands of this country and a summary of 

 the history of the national irrigation move- 

 ment, irrigation laws, and conditions in the 

 various states were given. The second re- 

 port included a general discussion of the 

 reclamation law, decisions relating to the 



