Filariasis and elephantiasis in Fiji ; being a report to the London School of Tropical Medicine.

  • Manson-Bahr, Philip Heinrich, Sir, 1881-
Date:
1912
Catalogue details

Licence: In copyright

Credit: Filariasis and elephantiasis in Fiji ; being a report to the London School of Tropical Medicine. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

    23/220 (page 9)
    SUMMAKY OF MEASUREMENTS OF LlVE FiLABIAE. Table I.—Females. A, Adult. Length. 05 mm. B. Adult. 55 mm. c. Adult. 05 mm. D. Immature. 42 mm. Imma- ture. 31 mm. Adult. 50 mm. G. Adult. 50 mm. H. Adult. 07 mm. •T53 mm. Breadth. -177 mm. •222 mm. •200 mm. •1824 mm. •04 mm. •135 mm. •15 mm. ■128 mm. Vaginal -76 mm. opkning jroin mouth. •09 mm. •09 mm. •435 mm. •434 mm. •()9 mm. •0 mm. Anus from tip of tail. •24 mm. •21 mm. Table II.—Males. A. B. 0. D. Length 29 mm 25 mm. 25 mm. 28 mm. » Breadth. •1296 mm. •129 mm. •09 mm. ■09 mm. 1. Female (Table I., a) found in a filarial abscess, uterus packed with embryos and ova. Numerous embryos observing no periodicity present in the circulation (vide Appendix XI., Chart XX.). 2. Three perfect females (Table I., b, c, d) and two perfect males (Table II., a, b) found in a large epitrochlear gland removed at operation from a Fijian. No other signs of filariasis, no microfilariae ever found in blood. One male and female found inextricably coiled round each other. Two females (c,d) found coiled up dormant in cortex of gland, but reviving on heating in normal saline. No microfilariae were found in gland juice. One female was found smaller than the others and apparently immature ; the uterus was packed with ova, but contained no embryos. In all thirteen filariae, or portions of separate filariae, were taken from this one gland. 3. An immature female measuring only 31 mm. in length (Table I., e) and part of a small male found in an enlarged epitrochlear gland. No microfilariae were present in the circulation. The uterus of the female was packed full of ova, but no embryos were seen. One calcified filaria, was also seen in the gland. 4. A perfect male, and an apparently immature female (Table II., c, and Table I., f), removed from enlarged inguinal gland. No micro- filariae were found in the blood. No ripe embryos found in the uterus of the female, though several ova were in the process of differentiation in the anterior part of the uterus. Part of another female was found, from whose uterine tubes streams of ova emerged into the normal saline solution. On being gently warmed, the contained embryos became active, stretching out the chorional envelope to form the sheath of the living microfilaria. This process was watched for some considerable time and bore out Sir Patrick Manson's hypothesis, founded on observations on the filaria of Corvus torquatus in China, that the sheath is really the embryonic egg capsule. Slides showing the process were made and sketclied (Plate I.).