ON THE BOTANY AND ENTOMOLOGY OF ICELAND. 253 
again play only once a day, some of them play every three or 
four days, others every week, others every month. Then as to the 
temperature of the water; Dr. Walker has told us that he could 
put his hand into it in Iceland; but, in the Yellowstone Park, no 
human being could do so, for there it is at the boiling point. The 
very ground about the geysirs was so hot in some places that we felt 
it through the thick soles of our boots. Now what I am coming 
to is this: it is said that the geysir in Iceland has stopped because 
it has been blocked up; I think this is incorrect, I believe it 
has died. In the Yellowstone Park, a district of 60 square miles, 
we saw some gradually coming into existence, growing up, as it 
were, into manhood ; in manhood’s prime, some gradually getting 
old and effete, and dying. Some were dead, and others not only 
dead but, if I may use the word, eviscerated. One of them had 
been dead for years, and my son and his uncle went down into it, 
and walked about in a large space beneath the surface of the 
earth, and they might have penetrated into chamber after chamber 
but that the carbonic acid gas was too strong to permit it. Now, 
I fear that Strokkr has just worked itself out. It may come to 
life again. But I think it is unlikely, because, as far as we could 
see, those that had completely died never seemed to resume opera- 
tions, but others took their places at a little distance from them— 
sometimes half a mile or more, sometimes only a short distance ; 
and so, though I fear we shall see no more of Strokkr, I hope some 
other will come in its stead. 
Rev. J. W. Bramuty Moorz, M.A.—From what I saw of the 
Strokkr I am not prepared to say that it has died out. (The 
AvurHor.—I am inclined to agree with you.) 
The AurHor.—I have to thank you for the kind reception 
accorded to my paper, which I have tried to make as complete as 
possible, because no entomological work on Iceland has been 
published for the past 33 years; about 1856 one was published in 
Germany, and since then the genera have been so subdivided as to 
require a new treatment of the subject. With respect to the remarks 
made on my paper :—As to the geysir playing, the Icelanders say 
it is sure to after heavy rains. Then as to the remark by one 
speaker in regard to the height of the trees, the tallest willows and 
birch I saw were not over 6 feet high. Then as to the exodus 
of Icelanders, about 200 Icelanders go cut to Lake Winnipeg 
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