2.-.L' 



AMERICAN FORESTRY 



on Shade and Orchard Trees against 

 Canker Worms, Climbing Cut Worms, 

 Woolly Aphides, Ants and Tussock, Gypsy 

 and Brown-tail Caterpillars. It is equally 

 effective against any crawling insects. 



Band Trees about Two Weeks 



Before Insects Appear to 



Get Best Results 



Easily applied with wooden paddle. One 

 pound makes about 10 lineal feet of band. 

 One application stays sticky three months 

 and longer outlasting 10 to 20 times any 

 other substance. Remains effective rain 

 or shine. Won't soften won't run or 

 melt, yet always elastic, expanding with 

 growth of tree. No mixing, simply open 

 can and use. Will not injure trees. 



For Tree Surgery 



Tree Tanglefoot is superior to anything 

 on the market it is the best application 

 after pruning or trimming. It will water- 

 proof the crotch of a tree or a cavity or 

 wound in a tree, when nothing else will do it. 



Sold by All First-Class Seedsmen 



1-lb. cans 35c; 3-lb. cans $1.00; 10-lb. 

 cans $3.00; 20-lb. cans $5.50 and 25-lb. 

 wooden pails $6.75. 



Write to-day for illustrated booklet on 

 Leaf-eating Insects. Mailed free. 



THE 0. & W. THUM COMPANY 



144 Straight Avenue, Grand Rapids, Mich. 



Manufacturers of Tanglefoot Flj Paper nd Tret Tanglefoot 



MM 



RSRflib pcir pases 







IliaSTRrTTORS 







UftiiF.To.nes line Cora 



3 CO.lPR. PR<2CeSSWt2RK. 



LecTR r <sxvpes 



50.6 -Hth. Street, M.W. 

 Wflsmnsran, P.C. 



Pru?neMe\in8274"- 



American lumberman, Feb. 24, 1917 Build- 

 ing codes and lumber production, by 

 Julius Seidel, p. 35 ; The outlook for 

 forestry in the northwest, by T. T. 

 Munger, p. 64. 



American lumberman, March 3, 1917. The 

 tree-killing beetles of California, by 

 Stewart Edward White, p. 32-3; In- 

 fluence of the silo on modern agricul- 

 ture, p. 41 ; Many ways of using south- 

 ern pine mill waste, by Howard F. 

 Weiss, p. 57. 



American lumbermen, March 10, 1917. 

 Will aid government in national de- 

 fense ; data collected by Forest products 

 laboratory on properties of wood most 



comprehensive, p. 34 ; Surface burning, 

 by Stewart Edward White, p. 36-7. 



Canada lumberman, March 1, 1917. Burn- 

 ing the slash after logging, by B. W. 

 Lakin, p. 29; Logging operations in 

 Newfoundland, by J. Wilfrid McGrath, 

 p. 30; Striking results from forest pa- 

 trol, by Arthur H. Graham, p. 38. 



Hardwood record, Feb. 25, 1917. Hard- 

 woods and softwoods, by Hu Maxwell, 

 p. 18-20; Plea for closer discrimination 

 in the use of the words " grain " and 

 " texture," with reference to wood, by 

 Arthur Koehler, p. 21-2. 



Hardwood record, March 10, 1917. Value 

 of weight in wood, by Hu Maxwell, p. 

 15-17; New Zealand teak, p. 20; Veneer- 

 ing with two woods, p. 25-6. 



Journal of industrial and engineering chem- 

 istry, March, 1917. The fixation of 

 nitrogen, by John E. Bucher, p. 233-53 ; 

 A study of commercial beechwood creo- 

 sote, by H. K. Smith and S. F. Acree, 

 p. 275-6; A method of producing crude 

 wood creosote from hardwood tar, by 

 R. C. Judd and S. F. Acree, p. 276-7 ; 

 Some observations on the influence of 

 humidity on the physical constants of 

 paper, by Otto Kress and Philip Silver- 

 stein, p. 277-82; Further studies on a 

 numerical expression for color as given 

 by the Ives tint photometer, by Otto 

 Kress and G. C. McNaughton, p. 282- 

 4; The chemistry of wood decay, by 

 Robert Evstafieff Rose, p. 284-7. 



Lumber trade journal, March 1, 1917. 

 Wood exports for 1916, p. 21-8. 



Lumber world review, March 10, 1917. 

 Wood preservation at low cost, p. 25-7. 



Packages, Feb., 1917. Cost chart, National 

 association of box manufacturers, p. 

 20; How to determine costs, by S. J. 

 Glanton, p. 42-4. 



Paper, Feb. 14, 1917. Electricity in the 

 paper industry, by W. W. Cronkhite, p. 

 42-54; Bleached groundwood, by Otto 

 Schutz, p. 64-6; Baled pulpwood chips, 

 by Rolf Thelen, p. 82-6; The manufac- 

 ture of pulp and paper, by Lucien Buck, 

 p. 88-123 ; First use of groundwood in 

 papermaking, by Warner Miller, p. 128 

 32 ; American paper in export trade, by 

 Benjamin Labree, p. 132-4; Technical 

 association of the pulp and paper in- 

 dustry ; 2d annual meeting, p. 136-63. 



Paper, Feb. 21, 1917. Paper pulp possibili- 

 ties said to be big in Brazil, by Alfred 

 L. M. Gottschalk, p. 40. 



Paper, Feb. 28, 1917. How paper is affected 

 by humidity, by Otto Kress, p. 13-17. 



Paper, March 7, 1917. This country's pulp- 

 wood resources, by W. B. Greeley, p. 

 17, 40. 



Paper mill and wood pulp news, Feb. 10, 

 1917. Wood waste for paper, by How- 

 ard F. Weiss, p. 245 ; Using the whole 

 tree, by A. W. Schorger, p. 246. 



Paper trade journal, Feb. 8, 1917. A year 

 of unusual activity in the paper and 

 pulp industry in 1916, p. 5-17; A year 

 of eventful conditions in England in the 

 paper industry, by A. L. Wise, p. 19- 

 21 ; Manufacture of paper in France 

 shows decrease, by E. Bardet, p. 23-5 ; 

 Quebec and maritime provinces are 

 busy : paper industry prosperous, by C. 

 L. Sibley, p. 26-39; Pulp and paper 

 work during the year of the Forest 

 products laboratory, by Otto Kress, p. 

 43-7; Forestry and forest products for 

 pulp, by Martin L. Griffin, p. 53-5 ; 

 Chinese mill has American machinery, 

 by L. M. Lamm, p. 66, 75 ; Production 

 of methyl alcohol from the spent liquors 

 of soda pulp process, by Albert E. 

 White and John D. Rue, p. 109-17; 

 Hemlock may be good substitute for 

 spruce pulp, p. 163 ; United States paper 

 laboratories, by L. M. Lamm, p. 305- 

 9; Paper-making in Great Britain dur- 

 ing 1916, p. 333-5; Improvements in 



