. Bulletin of the Brooklyn Entomological Society. Insects. 94 BULLETIN OF THE BROOKLYN KNT. SoC. This method has two great faults; first, that only one hand can be employed to give the larva the required shape, as the other is occupied in holding the straw while blowing in the air: second, that the last ventral segment, so characteristic in many larva' is spoiled by the insertion of the straw. Recently Mr. Fritz A. Wachtel has constructed an apparatus, which we think will work excellently. It consists of bottle K tight- ly closed by a cork or rubber. Two regtangulai-ly bent glass Tubes pass th
. Bulletin of the Brooklyn Entomological Society. Insects. 94 BULLETIN OF THE BROOKLYN KNT. SoC. This method has two great faults; first, that only one hand can be employed to give the larva the required shape, as the other is occupied in holding the straw while blowing in the air: second, that the last ventral segment, so characteristic in many larva' is spoiled by the insertion of the straw. Recently Mr. Fritz A. Wachtel has constructed an apparatus, which we think will work excellently. It consists of bottle K tight- ly closed by a cork or rubber. Two regtangulai-ly bent glass Tubes pass through this cork, the one A having a larger diameter, is connected by the rubber tube S, with the rubber bellows B, the smaller one C connects by the rubber tube D with a. tine pointed glass tube E, on which the larva-skin F is secured. The glass tube is held by the stand O, which allows vertical and horizontal movements thereby facilitating the approach of the larva to the heated metal plate that rest upon the tripod N, under which is placed the gas or alcohol lamp Lr. The bellows are worked by the foot and the air passing through the rubber tube S and the glass pipe A is compressed in the bottle by reason of the smaller diameter of the exit pipe C, cans-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brooklyn Entomological Society. Brooklyn, N. Y. : The Society
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1878
