196 VIVIPAROUS FLY. 
peppermint kept up motion for 70 minutes; the one in Fowler’s 
solution only ceased motion at the end of 53 minutes. 
In the light of such facts, what reprobation is too severe upon 
the useless and cruel practice of drenching horses with violent 
medicaments for the bots? The ailment thus known is due to the 
presence in the animal’s stomach of the larve of the bot-fly (Gas- 
trophilus equi Fabr-). By its formidable mouth-hooks this larva 
clings to the walls of the stomach. Now it must be evident that 
by such methods of treatment, either to kill this parasite, or detach 
it from its hold would require medicines in such quantity, and of 
such power, that death to the poor animal would become inevitable 
before even its tormentors had been materially affected. Scarcity 
of. specimens limited the experiments. I had meant to try the 
effect of suffocation, by immersing them in some one of the animal 
oils, for it is possible that herein may be found a simple remedy 
for that malady in horses.* 
July 6th.—The glass on the flower-pot has been carelessly dis- 
placed several days. I noticed certain depressions in the earth, 
uch as are made when little holes are filled up by the crumbling 
of their sides, The sight was ominous. Imagine the feelings 
which prompted me to exclaim suspiciously, ‘The imagines are 
gone.” Alas, it was so! From the dryness of the depressions, 
and other indications, I was satisfied that the perfect flies had 
taken flight on the Fourth of July—thus, in a way against which 
no despot could demur, they had entered on their freedom on Inde- 
pendence Day! All this was very fine; but believing that patri- 
otism should not extend to flies, the whole transaction did violence 
to my scientific instincts. In chagrin I slowly removed the earth 
gg et my attention was called to ya Pa "n — life a papori ae 
poi Iw: s forced by the claims of justice to take part in a toxicological examl 
tion ri the Aeka organs of a person who had ‘been nine sapere buri ed. These were 
I 8S S 
mg pichloria’ of oman had A eed: yi aad 
e quantity x this “terrible poison. Naturalists pope how well this dryg 
reserve animal t ues. And in cae case, ra banyte in the capillary vessels was 
i i rve 
