. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 388 Miscellaneous. put on. In the diagram (p. 387), A represents one pair of canulse, both opened and closed. B shows their position at the time of crossed circulation. It will be observed that each artery requires four pieces of apparatus, viz. two spring forceps to stop the blood, and two canulse. Thus, when the throats were brought close together, to connect the arteries cross-wise, there were no less than eight separate pieces at work in a deep hollow, close together, and
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 388 Miscellaneous. put on. In the diagram (p. 387), A represents one pair of canulse, both opened and closed. B shows their position at the time of crossed circulation. It will be observed that each artery requires four pieces of apparatus, viz. two spring forceps to stop the blood, and two canulse. Thus, when the throats were brought close together, to connect the arteries cross-wise, there were no less than eight separate pieces at work in a deep hollow, close together, and attached to delicate arteries, none of which could be permitted to twist or interfere with each other. I append a reduced sketch of one of the two frameworks over which, as previously described, I suspended these instru- ments, with attached counterpoises, and so avoided all confusion. Both pair of canulse and two pair of forceps are here represented ; they might be so arranged; but it is better to divide the instruments, equally, between the two frames. For removing clots from the canulse, I tried a great many plans, none with as much success as I could wish. I have, however, been able to extract clots from the artery itself, a good quarter of an inch beyond the canulee, with a wire whose end had been cut with a file into a delicate solid corkscrew. I washed out the canulse, before reconnecting, with a thin stream of water sent through the quill of a small bird, which I had fastened, by help of a short India-rubber tube, to my syringe. The wounds require careful dressing, just like those of a man. The rabbits bear the operations wonderfully well, and appear to suffer little or no pain when the influence of the anaesthetics happens to have left them temporarily sensible. They are often quite frisky when released, and sometimes look as though nothing whatever unusual had happened to them, all through the time of their MISCELLANEOUS. Note on the Ichthyosaurian Head. To
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Keywords: ., bookce, booksubjectbotany, booksubjectgeology, booksubjectzoology
