214 Mr. Hatchett's analytical Experiments 
Stick Lac. 
Resin - 
68. 
Colouring extract 
, 10. 
Wax - 
6 . 
Gluten 
5-50 
Extraneous substances 
6.50 
0* 
i 05 
Seed Lac. 
Resin - 
88.50 
Colouring extract 
2.50 
Wax - 
4*50 
Gluten - 
2. 
97 - 50 . 
Shell Lac. 
Resin - 
90.90 
Colouring extract 
0.50 
Wax - 
4 - 
Gluten - - 
2.80 
98.20. 
The proportions of the substances which compose the varieties 
of lac, must however be subject to very considerable variations ; 
and we ought therefore only to consider these analyses in a 
general point of view. Hence we should state, that lac consists 
principally of resin, mixed with certain proportions of a peculiar 
kind of wax, of gluten, and of colouring extract. 
The relative quantity of the two latter 
ingredients, very con- 
siderably affect the characters of the lacs ; 
fer instance, we may 
