128 Forestry Quarterly 



Quite the most interesting reference to 



Notes Indian silviculture that has come to my 



on notice is the article on "The Deodar," by 



Deodar C. G. Trevor. It is based on data presented 



at an important forest conference. 



After describing the prolific seed crop, he shows clearly how 



heat, sun, hailstones, insects, and excessive humus does away 



with the seedling. 



"This is the reason why seedlings are so often found growing 

 on roadsides or other places where the mineral soil has been 

 exposed." 



Excessive dampness or extreme shade also causes the loss of 

 seedlings, as well as grazing and trampling, undergrowth, matted 

 grass and other minor causes. The soil often becomes chemically 

 or physically unsuited to the species, owing to excessive humus 

 and vegetable debris. Trevor contends, however, that the physical 

 state of the soil is of the greatest importance to secure repro- 

 duction. 



"It therefore follows that the factors enumerated below must 

 be suitable: 



a) Physical condition of the soil, 



b) Moisture, 



c) Light, 



d) Protection." 



Trevor then follows with a discussion of the silvicultural sys- 

 tems in practice, the selection method, the group method, the regu- 

 lar or shelterwood compartment method, which, he states, "appears 

 to have very great advantages" on account of the "importance 

 of the even-aged woods, definite areas under regeneration, tending 

 of the seedling, and its demands on light." 



Under reproduction, he discusses measures (which seem quite 

 intensive for Indian conditions) to improve regeneration. Re- 

 garding excessive vegetable deposit, he says : 



"It will have been broken up to a certain extent by the felling 

 and removal of timber which has just taken place; it will be still 

 more reduced by the collection and burning of felling refuse. 

 . . . If still excessive, it may be raked up and burned, or 

 hoed up and mixed with the soil." 



