— 106 — 



2. Comparison in Quality of Lac Obtained from Large 

 AND FROM Small Trees. 



As shown in the foregoing pages, the nature of the lac is greatly 

 influenced by the mode and time of tapping, etc. The age of the trees 

 also exerts a considerable influence upon the quality of the lac, as is 

 shown by the results given below. 



Product of large Trees (16 years old) and small Trees 

 (6-7 years old) COMPARED 



Compared with the product from small trees, " early lac " from 

 large trees is less in water content by 3.3%, in nitrogenous substance by 

 0.4% while it is richer in urushiol by 2.7%, and in gummy substance by 

 0.97%. "prime lac" from large trees is less in water content by 5.2%, 

 in gummy substance by 0.45%, in nitrogenous substance by 0.68% while 

 it is richer in urushiol content by 6.1% as compared with that from 

 small trees. Thus, both in " prime " and " early " lac, large trees surpass 

 small trees in their products. " early lac " of large trees compared with 

 "prime" of small trees is still richer in content of urushiol by 2% and 

 somewhat poorer in content of gummy and nitrogenous substances; thus 

 again to the credit of " early lac " from old trees is better than " prime 

 lac " from young trees. 



3. COMPARISON OF IHE PRODUCTS WITH REGARD TO LOCALITY. 



To show the influence of the producing locality upon the quality of 

 lac, the composition of "prime lac" obtained from similar trees in 

 different localities is given below: — 



