o2 BULLETIN NO. 3, DIVISION OF ENTOMOLOGY. 
with him and examined his poisons and machines, in both of which he 
is doing an extensive business. He has a large supply of pure arsenic 
on hand, as well as a compound poison, manufactured by himself, of 
which he sells large quantities. He presented me with a large box, 
which I left in the hands of Dr. Ridley, near Hempstead, to be tried 
and reported upon, which report will be duly forwarded. Judge John- 
son’s machine for spraying has been described both in your Bulletin 
No. 3 and Agricultural Repert, 1879. He claims, however, an improve- 
ment in the branch-pipes, and has arranged the machine to be worked 
automatically by the pitman or by the driver. His machine is certainly 
an admirable one, and at the reduced price of $40 is now being rap- 
idly sold. As the season was too early for its practical application I 
can sav nothing of its operation in the field. I had an interesting in- 
terview here with Gen. T. B. Howard. He seems to take a great in- 
terest in the discovery of Mr. L. C. White, of Jasper, Jaspet County, 
Texas, who professes to have originated a worm-proof cotton by pro- 
ducing a hybrid from Jamestown weed (Datura stramonium). He 
thinks his experiments with the seed have verified Mr. White’s theory. 
I suggested that as they belonged to two different families of plants I 
could not understand it, but he still thinks Mr. White has accomplished 
it, as the seed he gave him produced a plant like cotton, except that it 
had the odor of Jamestown weed and the worms would not eat it, 
though they eat other cotton planted side by side with it. -Mr. White, 
I learned, had offered his seed to the Department.’ 
I also interviewed at Houston Dr. RB. T. Flewellen, to whom I had 
been referred as better posted on the subject of Aletia than any one 
there, or perhaps in Texas, as he had made the insect his study for a 
number of years, and had published his observations and some inter- 
esting facts. He soon convinced me that his method of investigation 
was careful and thorough, and that he had by experiment arrived at 
certain facts not stated by others, and which alone could be accounted 
for upon local and climatic causes. I held several interviews with him, 
in order to elicit all of his views and methods, and invited him to visit 
Fort Bend with me, which he did, and we thus had the opportunity of a 
‘free exchange of opinions and discussion of the opinions of others. As 
to hibernation of the chrysalis in Southern Texas, his experiments, he 
says, leaves no doubt. The life term of the moth he believes to be lim- 
ited to twelve days, twelve in summer and six in winter, as he could 
never carry one beyond this. This would be due to climatic influence, 
admitting it to be so. 
While in De Witt County I addressed him a letter requesting an an- 
swer to certain interrogatories. His reply reached me at Houston, and 
from it [copied his remarks on hibernation in a letter to you. He in- 
advertently made his experiments commence in 1868 and end in 1879, 
when they were made in less than one year; that is, his chrysalides were 
put up in the fall and were carried finoughh the following winter and 
summer. I have sent this to him for revision. 
