Observations on Filaria sanguinis hominis in south Formosa / by W. Wykeham Myers.

  • Myers, William Wykeham.
Date:
[1880?]
Catalogue details

Licence: Public Domain Mark

Credit: Observations on Filaria sanguinis hominis in south Formosa / by W. Wykeham Myers. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    Morning Slides. i i tli stretched out, spasmodic, interrupted action, quite languid, remaining passive for some time. 12th stretched out, less languid than last, though evidently weak. 8 a.m. : 7 Embryos. ist stretched out, very languid, one portion gyrating slowly round passive part. 2nd languid, gyrating, spasmodic action, stretched out. 3rd stretched out, very languid. 4th stretched out in long semi-oval, very feeble. 5 th stretched out, spasmodic action, very languid, motion confined to extremities. 6th more active than last, stretched out. 7th stretched out, nearly normal action, though pauses are discernible. 2nd Observation; Preparation 12 hours old. 7.45 a.m. Slide, only 8 Embryos now visible. 1st quite dead. 2nd stretched out, languidly moving. 3rd much the same as last. 4th ditto, ditto. 5th more vigorous than others. 6th stretched out, but very vigorous. •jth stretched out, languid. 8th stretched out, much more feeble, what action there is, spasmodic. 8 a.m. Slide, only 5 Embryos now visible. 1st upper two-thirds of body curled, and slowly moving on lower one-third, very feeble. 2nd ditto, ditto. 3rd stretched out, weak undulatory motion. 4th stretched out, more vigorous. 5th stretched out, very weak. Second Day:—3rd Observation at 9.30 p.m.; Pre- paration 36 hours old. 7.45 a.m. Slide, 8 Embryos only visible. 1st and 2nd dead. 3rd wriggling itself in knots, then passive for two or three seconds, convulsively freeing itself, pausing a like time, and then repeating the process. Evening Slides. Second Day:—2nd Observation at 9.30 p.m.; Preparation 24 hours old. 9.30 p.m. Slide, 31 Embryos visible. All more stretched out than on previous evening, and the movements less vigorous, especially about oral extremity. Two embryos seemed less active than rest, but otherwise no very marked signs of debility.