CURRENT LITERATURE 



443 



ond annual report. 80 p. Baltimore, 

 Md., 1917. 

 National parks 



United States Dept. of the interior 

 National park service. The national 

 parks portfolio, 2d edition. 260 p. 

 il., pi. Wash., D. C, 1917. 



Tanning 



Norton, T. H. Tanning materials of Latin 

 America. 32 p. pi., map. Wash., D. 

 C, 1918. (U. S. Dept. of commerce- 

 Bureau of foreign and domestic com- 

 merce. Special agents series no. 165.) 



PERIODICAL ARTICLES 



Miscellaneous periodicals 



Aerial age, June 17, 1918. Advance rot 

 and latent defects in aeroplane timber, 

 by J. S. Boyce, p. 674-5, 691. 



American review of reviews, June, 1918 

 West coast ship-building, by C. V. 

 Dyment, p. 619-27; Production of air- 

 plane spruce, by W. Compton, p. 629- 

 33; The man who heads the "spruce 

 drive," by S. H. Clay, p. 633-5; Our 

 new national parks, by C. F. Carter, 

 p. 638-42. 



Conservation, June, 1918. Estimate pulp- 

 wood resources of Canada, by C. 

 Leavitt, p. 22. 



Cornell countryman, May, 1918. Hooveriz- 

 ing the woodlot, by J. B. Bentley, p. 

 467-8. 



Country gentleman, May 18, 1918. The 

 firemen of the forest, p. 1. 



Cut-over lands, May, 1918. Pasturage on 

 cut-over pine lands, by S. F. Morst, 

 p. 1-2; Demonstration of a stump re- 

 mover and harvester, p. 8-9. 



Garden magazine, May, 1918. Things to 

 remember in planting evergreens, by 

 W. J. Morrill, p. 208. 



Gardeners' chronicle, May 18, 1918. Fire- 

 wood and fagots in war time, p. 208. 



House and garden, June, 1918. The roof 

 that is made of shingles, by E. I. 

 Freese, p. 44. 



Iowa conservation, Jan.-Mar., 1918. 

 "Times and seasons" among the trees, 

 by C. M. King, p. 10-11 ; Iowa's wood- 

 lands, by G. B. MacDonald, p. 12. 



Scientific American, April, 20, 1918. Floors 

 made of wood blocks, p. 357, 368. 



Scientific American, May 18, 1918. Turn- 

 ing sand hills into pine forests, by R. 

 P. Crawford, p. 447. 



U. S. Dept. of agriculture. Journal of 

 agricultural research, May 6, 1918. 

 An undescribed canker of poplars and 

 willows caused by Cytospora chrusos- 

 perma, by W. H. Long, p. 331-45. 



U. S. Dept. of agriculture. Journal of 

 agricultural research, June 3, 1918. 

 A new bacterial disease of gipsy-moth 

 caterpillars, by R. W. Glaser, p. 515-22. 



Trade journals and consular reports 



American lumberman, May 25, 1918. New 

 England answers call for airplane 

 spruce, p. 59; Spanish cedar for ves- 

 sels, by C. D. Mell, p. 64. 



American lumberman, June 1, 1918. Saw- 

 milling in southern Brazil, by E. F. 



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