1)32 JOURNAL OF Forestry 



by cubic feet instead of otber ecjuivalents. To illustrate the immense 

 amount of data presented, let us turn to the Teak (Tectona Grandis, 

 pp. ()97-7f)9). The study of this species includes its silvicultural char- 

 acterists, general distribution, climate, topography, geology and soil, 

 local occurrence and types of forests in Burma and elsewhere, leaf 

 shedding, flowering and fruit germination with a very detailed descrip- 

 tioa of the seedling, silvicultural characterists, natural reproduction, 

 divided into (1) spread of seed; (2) factors influencing germination; 

 (3) temperature; (4) soil aereation; (5) burying of the seed; (6) com- 

 bination of factors; (T) factors influencing the survival of seedlings, 

 as to light, soil aereation, soil moisture, weed growth, grazing; (8) some 

 examples of natural reproduction; (9) artificial reproduction, including 

 particulars of some teak plantations in various parts of India, choice of 

 site, spacing, preparation of seed, covering of seed, nursery treatment 

 and transplanting, transplating natural seedlings, the Burma Taungya 

 system, broadcast sowing, dibbling, tending of teak plantations, mix- 

 tures in plantations; (10) silvicultural treatment divided into coppice 

 systems, high forest systems, etc. ; (11) statistical, in which are included 

 growth data, yield data, volume figures, etc. It will thus be seen that 

 the book is written more from the silvicultural viewpoint than from 

 the viewpoint of the botanist, a radical change from former works of 

 this general nature. The best methods of European silviculture are 

 herein applied to British Indian species. The tree studies of important 

 species give much more local detail than do the commercial tree studies 

 published by the Forest Service in the United States. For our com- 

 mercial tree studies are largely condensed and the reading matter sifted 

 and arranged to a much greater degree than is done in these volumes. 

 From the scientific standpoint, Troup's work will be of lasting value 

 as a reference work from the mere fact that it contains such an enor- 

 mous amount of detailed data. Its main weakness, judged from the 

 viewpoint of the forester, is lack of systematic and detailed growth 

 data, especially for those species which can be studied only by means 

 of permanent sample plots. 



This book should unquestionably be in every forest library since it 

 will prove to be the greatest work of its kind on species growing in 

 British India. Its value as a reference work will not be confined to the 

 mere description of the species themselves because in addition it con- 

 tains a vast amount of sound silviculture of direct value to foresters 

 practicing forestry in the United States. Anyone engaged in silvical 



