A report on the microscopic objects found in cholera evacuations, &c. / by Timothy Richards Lewis.

  • Lewis, T. R. (Timothy Richards), 1841-1886.
Date:
1870
Catalogue details

Licence: Public Domain Mark

Credit: A report on the microscopic objects found in cholera evacuations, &c. / by Timothy Richards Lewis. 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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    FIGURES. Fertile filament of Aspergillus; some of the spores (conidin) are seen falling oil'... Ditto ditto Penicillium Cells of various sizes in the cultivation, probably modified spores ... Very thin filaments terminating in excessively delicate mucor-liko cysts or sporangia, some ot which are hlled with elongated spores xix. >» a 11 Plate VII (opposite page 12.) Highly developed specimens ot mycelial filaments, with numcious ° dilatations (Macroconidia), which separating are found as free circular cells in the field, capable of germinating like ordinary spores (cultivated in cholera discharge) NOS. 1 2 3 4 Plate VIII (opposite page 14.) Fungi developed in ordinary evacuation. Spores in process of germination Micrococcus Penicillium glaucum Aspergillus Numerous filaments of Oidium lactis, corresponding to the “ cholci fungus” of Thome 91 xxi. 1-2 ,, 3 xxii. 1 xxiii. Plate IX (opposite page 16.) Fungi developed in ordinary evacuation. Spores, cysts, and filaments of Mucor in various stages of develop- ment Escaped spores Detached cyst or sporangium ... Cysts still attached to the fertile filaments ... Heads of fertile filaments (Columella), with the remains of the rup- tured cyst-capsules still attached N. B.—Compare Nos. 2and 3 with Hallier’s figures (Plate I, Nos. 2 and 8). Ruptured mucor sporangia A ruptured cyst with spores escaping Ditto the spores having completely escaped Ditto detached from its stalk A mucor cyst detached from the fertile filament. The spores arc seen to escape through the capsule 0 Aspergillus fructification simulating that of mucor; a glutinous film surrounding it, thus keeping the spores or conidia together. The fertile filament is seen to be partly ruptured ... Detached Aspergillus heads of various sizes, the spores being held together by means of some glutinous material Ditto in process of germination. N. It.—Compare with Hallier’s drawing of the mature cholera-cyst in the same condition (Plato I? No. II.) .I. .mi hi in ... xxiv. 91 11 11 1 2 3 11 4 XXV. 11 11 1 2 11 3 xxvi. 1 11 2 xxvii. 1-2 1) •* i • • • 3