CURRENT LITERATURE 



251 



Geographical review, Feb., 1917. A map of 

 the vegetation of the United States, by 

 Forrest Shreve, p. 119-25. 

 Good roads, Feb. 24, 1917. Recent practice 

 in wood block pavements, by Ellis R. 

 Dutton, p. 129-31. 

 Harvard graduates' magazine, Dec, 1916. 

 Some unwritten records in the Harvard 

 forest, by Richard T. Fisher, p. 191-3. 

 House and garden, Dec, 1916. A study of j 



trees in winter, by E. P. Powell, p. 29. 

 International review of the science and prac- 

 tice of agriculture, Sept., 1916. His- 

 torical review of Canada's timber in- 

 dustry, by James Lawler, p. 1227-34; 

 The forest trees of Canada, by R. G. 

 Lewis, p. 1234-41. 

 Journal of commerce, Feb. 5, 1917. Dis- 

 covering native woods for dye ma- 

 terials, by Howard F. Weiss, p. 19; 

 Finding new uses for the waste of for- 

 ests, by A. W. Schorger, p. 41. 

 Journal of geography, Dec, 1916. Influ- 

 ence of the lumber industry upon the 

 salt industry of Michigan, by Charles 

 W. Cook, p. 117-25. 

 Journal of heredity, March, 1917. The 

 Texas palmetto, Inodes texana, p. 123-4. 

 Michigan farmer, Jan. 13, 1917. The wood- 

 lot, its place in farm management, by 

 W. I. Gilson, p. 25, 27-8. 

 National wool grower, Feb., 1917. Deci- 

 sion regarding grazing fees, by David 

 F. Houston, p. 27-8. 

 Philippine agricultural review, 1916. Notes 

 on cinchona in Java, by P. J. Wester, 

 p. 273-7. 

 Phytopathology, Feb., 1917. The penetra- 

 tion of foreign substances introduced 

 into trees, by W. H. Rankin, p. 5-13; 

 Does Cronartium ribicola winter on the 

 currant, by W. A. McCubbin, p. 17-31 ; 

 Some new or little known hosts for 

 wood-destroying fungi, by Arthur S. 

 Rhoades, p. 46-8. 

 Plant world, Jan., 1917. Notes on the his- 

 tory of the willows and poplars, by 

 Edward W. Berry, p. 16-28; A quarter- 

 century growth in plant physiology, by 

 Burton Edward Livingston, p. 1-15. 

 Reclamation record, March, 1917. Protect- 

 ing the water user by land classification, 

 p. 143-4. 

 St. Nicholas, Dec, 1916. Protecting the 



nation's forests, p. 168-9. 

 Scientific American, Feb. 3, 1917. Doum 



nuts of commerce, p. 129. 

 Scientific American, Feb. 17, 1917. Science 

 in the lumber industry ; tremendous 

 saving of waste products now being 

 effected upon a commercial scale, by 

 Wm. J. Ferry, p. 178. 

 Scientific American supplement, Dec. 16, 

 1916. Where the motor truck has dis- 

 placed the horse ; records made haul- 

 ing heavy logs in Washington forests, 

 p. 388-9 ; Experiments in the cultivation 

 of the cork tree in Sardinia, p. 395. 

 Scientific American supplement, Jan. 13, 

 1917. The Brazil nut of commerce ; 

 how it grows, and how it is gathered, 

 p. 20-1 ; The oaks of America, by Wil- 

 liam Trelease, p. 23 ; Hevea rubber tree, 

 p. 23 ; Trees in medicine, by John Foote, 

 p. 26-7. 

 University of California journal of agri- 

 culture, Feb., 1917. Forest service con- 

 ference, by L. W. Taylor, p. 190, 20O-1 ; 

 Depreciation factors in lumber study, 

 p. 191, 204-5. 

 World's work, Feb., 1917. A mechanical 

 tree feller, p. 453-4. 



Trade journals and consular reports 

 American lumberman, Feb. 17, 1917. Plan 



to control blister rust is suggested, p. 



52. 



3*> 



Clearing Costs Reduced 



w;. J he . re ? ent land clearing tests conducted by the University of 

 Wisconsin have revolutionized methods and established conclu- 

 sively much lower clearing costs per acre 



rer, J^!^ d ' n ^? n i S of s ? ump P ulIers lnd and power were 

 represented. The dynamite used was 



RED CROSS FARM POWDER 



These tests proved the following important facts: 

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Jtrt 



111 



2nd The combined use of Red Cross Farm Powder and a stump 

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3rdProperly placed charges fired with a blasting machine greatly 

 reduce the amount, strength and cost of the dynamite required. 



As a result the average stump covered land can now be cleared at 

 less cost per acre than before the war. 



Write Now lor Full Information 

 Every farmer with stump covered land should know the full facts 

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Land Clearing Bulletin No. 350 

 . S y 1"? ar ? intereste d in orchard planting, ditching, drainage, 

 boulder blasting, subsoiling or post hole blasting be sure to ask for 

 Hand Book ol Explosives No. 350 



E. I. du PONT de NEMOURS CD. CO. 

 Wilmington Delaware 



3* 



Continued Success and Growth of American 

 Forestry is dependent upon the manner in 

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 admitted in these columns. 



Our Trees 



HOW TO KNOW THEM 



Photographs from Nature 

 By ARTHUR I. EMERSON 



WITH A GUIDE TO THEIR RECOGNI- 

 TION AT ANY SEASON OF THE YEAR 

 AND NOTES ON THEIR CHARACTER. 

 ISTICS. DISTRIBUTION AND CULTURE 



By CLARENCE M. WEED, D.Sc. 



Teacher of Nature Study in the Massachusetts 

 State Normal School at Lowell 



One hundred and forty Illustrations 



Size of book, 7'A Inches by 10 Inches 



Cloth, $3.00 net Postage extra 



ALL nature-lovers will hail this book 

 l with delight. Its purpose is to 

 afford an opportunity for a more 

 intelligent acquaintance with American 

 trees, native and naturalized. The 

 pictures upon the plates have in all 

 cases been photographed direct from 

 nature, and have been brought together 

 in such a way that the non-botanical 

 reader can recognize at a glance either 

 the whole tree or' the leaves, flowers, 

 fruits, or winter twigs, and thus be able 

 to identify with ease and certainty any 

 unknown tree to which his attention 

 may be called. In the discussion of the 

 text especial attention has been given 

 to the distinguishing character of the 

 various species, as well as to the more 

 interesting phases of the yearly cycle 

 of each, and the special values of each 

 for ornamental planting. 



Publishers 



J. B. LIPPINCOTT COMPANY 

 Philadelphia 



