THE CANADIAN ENTOMOLOGIST. 239 



GLASS TUBES AS INCUBATORS. 



Sir, — On June the 24th, 1893, I was obliged to go to my home in 

 the High Sierras and beyond the Yosemite 22^ miles, as I had some 

 moth eggs that I wanted to hatch and rear larvae from. Before going I 

 placed all the leaves that had eggs on them in a small glass jelly jar ; 

 being three days getting there, on account of the deep snow, I kept 

 putting in fresh leaves every day for the young larvae to feed on, as the 

 eggs had begun to hatch before I started, and when I got home I had 

 more dried and withered leaves than I bargained for, and in consequence 

 lost some of the smaller larvae that had hidden themselves. To prevent 

 a recurrence of such loss, I thought of some glass tubes that were sent to 

 me by Prof. Riley. I then separated all the leaves that had eggs on them, 

 cut away all the superfluous dry parts of the leaf, and placed them all in 

 one of these tubes, introducing a fresh leaf or part of one until a newly 

 hatched larva made its appearance ; I would then draw him out with the 

 leaf and place him in another tube, or on a potted plant, thus ensuring 

 correct data and better chances of observing its natural life-habits. This 

 also ensures saftey to both eggs and the young larvie, as new food can be 

 introduced and the old extracted without annoying the larvae. 



John B. Lembert, Yosemite, Cal. 



THE ASSOCIATION OF ECONOMIC ENTOMOLOGISTS. 



The Association of Economic Entomologists will hold its annual 

 meeting this year in Brooklyn, N. Y, August 14th and 15th, dates imme- 

 diately preceding the meeting of the American Association for the 

 Advancement of Science. 



The fact that the meeting is to be held in Brooklyn is a sufficient 

 guarantee of a large attendance and a meeting of moie than usual interest. 

 It is sincerely hoped that every member who can will be present, with 

 papers to read, questions to ask and ideas to impart, that will make the 

 meeting profitable and send all back to their posts of duty inspired to 

 better work. C. P. Gillette, Sec'y., Fort Collins, Colo. 



