2 ' 
or those plants which the Indians use to poison their arrows. The 
moths you enclose from the capsules of bi~ capsular is are some- 
what smaller than Garpocapsa saltitans . and belong, in fact, to a 
different genus. So far as I can now make out, they are an 
undescribed species of Grapholitha . the larvae of which commonly 
infest various seeds, I shall be very much indebted to you if 
you will in any way revise or add to the synopsis which I quote 
from Mr. Rose, as you are more familiar with the species and 
generic characters than he probably is. So far as I know each 
carpel in almost all Euphorbiaceous plants contains one seed, 
and the single seed which I have seen from S.palmeri was dark and 
very small compared with the size of the carpel, while in bicapsu- 
laris the seed is lighter in color and occupies the entire cavity 
of the carpel. Now I have been very much puzzled over Dr, Barnes' 
language, as to each pod containing from 3 to 5 seeds, and par- 
ticularly puzzled by the fact that the larve of Garpocapsa sal- 
titans is much toe large to have nourished on a single seed of the 
size which cliaracteriset^ S.palmeri . Gan you throw any light on this 
phase of the subject? 
What you write me of your experience with the figs in 
Mexico interests me intensely, I have for some time been giving 
attention to the question of caprificat ion in this country, and 
have a number of interesting data accumilated, I have also a 
