viii 
The scheme of operations for the study covered by this Record 
included the investigation of these items as affecting 53 species in 8 
provinces and 15 divisions. But with the staff and facilities avail- 
able only a start has been made so that few of the questions raised 
can be answered definitely or finally at this time. At the conclu- 
sion of this study, which must be regarded as but mere preliminary 
work, we are able to narrow attention on to points which are of the 
greatest importance and to plan for more comprehensive work later. 
The pressing need of an answer to some of the points raised jus- 
tifies opinions and recommendations somewhat beyond the scope of 
the experiments as carried out so that this note includes somewhat 
more than the actual findings of the study. Some of the data and 
recommendations are based on the previous experience of the witer 
in America and on general observation of conditions in India. 
Many of the conclusions arrived at are merely tentative, and are 
given only for guidance until more reliable deductions can be drawn. 
This is particularly the case in connection with the attempts to 
classify the different kinds of wood according to their particular charac 
teristics and requirements. The classifications are a result of colla- 
boration with the Forest Economist, the Forest Entomologist, and 
other research officers at Debra Dun, but it must be emphasized that 
the data are merely the best available at the present time and are not 
to be regarded as final or conclusive. 
