. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 122 CARROLL M. WILLIAMS ordinarily they could be isolated and implanted only as small fragments. However, by using Telea polyphemus as donors, the difficulty was somewhat lessened, since, in this closely related diapausing species, the prothoracic glands are much easier to locate and isolate during the first few days af adult development. A further serious complication was the high mortality among abdomens re- ceiving such implants. Notwithstanding the use of cyanide and phenylthiourea, the implanted glands caused a delayed
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 122 CARROLL M. WILLIAMS ordinarily they could be isolated and implanted only as small fragments. However, by using Telea polyphemus as donors, the difficulty was somewhat lessened, since, in this closely related diapausing species, the prothoracic glands are much easier to locate and isolate during the first few days af adult development. A further serious complication was the high mortality among abdomens re- ceiving such implants. Notwithstanding the use of cyanide and phenylthiourea, the implanted glands caused a delayed darkening of the blood followed by the death. FIGURE 1. Isolated abdomen of a diapausing Cecropia pupa sealed to a plastic slip. Prothoracic glands obtained from postdiapausing pupae are being implanted through a central hole in the slip. FIGURE 2. The preparation in Figure 1, after adult development. The active prothoracic glands have evoked the metamorphosis of the abdomen; the latter is shown laying several 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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