Literature. 435 



the cliara<;teristicB and strengtli, tlie timber physics, of 

 American woods, which in its comprehensiveness com- 

 manded the admiration of even the Germans, and gave 

 rise to a series of reports. The biology of American 

 species, more or less exhaustively studied, was also begun 

 in the old Division, as well as forest surveys, etc. 



By 1902, enough professional interest was in the 

 eoimtry to make the publication of a professional journal 

 possible and desirable, the Forestry Quwrierly being 

 launched by the writer, with a Board of Editors chosen 

 mainly from, the forest schools. 



The first association of professional foresters was 

 formed in 1900 — the Society of American Foresters — 

 which issues from time to time proceedings containing 

 technical discussions. 



The technical book literature, partly due, no doubt, 

 to the overpowering publication facilities of the federal 

 government, is still scanty, and good textbooks especially 

 are still lacking in most branches. 



A series of ephemeral popular books answered the de- 

 mands of earlier days, but outside of Professor Henry S. 

 Graves' volume on Forest Mensuration and a few minor 

 aid books and lecture notes, there is as yet nothing of 

 prominent value to be recorded. 



Three monumeiital works can be mentioned in the 

 dendrological line, however, namely the 10th volume of 

 the XII Census (1880) on the Forests of North Amer- 

 ica; Micheaux and Nutall's North American Silva in 5 

 volumes, 1865 ; and C. S. Sargent's Silva of the United 

 States, in 13 magnificent volumes, — ^three publicationfl 

 which can take rank with any similar literature any- 

 where. 



