THE CANADIAN ENTOMOLOGIST. Et 19 
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Having purchased chemicals, &c., for the purpose of thoroughly 
testing it at Anticosti and Labrador, last summer, I give my experience 
with the hope that it may be of service. | Dried apples, such as recom- 
mended, were immersed in Nitric Ether, and hung on branches of trees 
on the second day after my arrival on Anticosti, and I visited the baits 
that night and each succeeding one during my stay on the Island. Moths 
were flying in the-vicinity, and several passed within twelve inches of the 
bait, but only ove was noticed to rest on it during the season. The baits 
on Anticosti and Labrador were constantly visited by Diptera and ants, 
and these alone. My want of success discouraged me, and I resolved to 
add sugar to the bait, and it was only with this addition that moths were 
attracted. I think, therefore, that the old mode of sugaring is still the 
best for this country. My friend, Mr. Caulfield, tried it here last summer 
with a like result. 
It occurs to me that a bait might be prepared to attract Diurnal 
Lepidoptera. I passed two months of the summer of 1871 on the Black 
River, about 140 miles north of Montreal. I resided in a shanty on the 
new Colonization Road, which follows the river through the mountains. 
Water in which salt pork had been par-boiled, was thrown out on the 
sandy loam opposite the door, and I noticed that hundreds of Papilio 
turnus frequented this spot during favorable weather, thrusting their 
tongues into the moistened sand when the fluid absorbed, for which they 
seemed to have such an extraordinary liking, rendered them semi- 
intoxicated. 
I have seen them flying from all quarters direct for the shanty. Many 
of them, I believe, came from a distance of two miles at least. The spot 
which these butterflies visited was certainly that on which the pork water 
was thrown, and the effluvia resulting from this was doubtless the great 
source of attraction. In A. R. Wallace’s ‘Malay Archipelago,” page 
124, he says that the rare Charaxes Kadenii, a Java swallow-tail butterfly, 
was caught as it was sitting with wings erect sucking up the liquid from a 
muddy spot by the roadside, and I have seen several of our Canadian 
butterflies sucking the moisture from mud on the margins of ponds made 
for the use of cattle. 
I intend to try a few experiments in suitable places next summer on 
Anticosti, &c., with water in which salt pork has been par-boiled, with various 
other substances added,and the results will be noted for the benefit of those 
concerned. Cyanide of Potassium is a quick destroyer of insect life, 
and I recommend it for night collecting. 
