264 APPENDIX. 



to 17 mm. Sometimes placed on the side of the stalk is another 

 smaller sporangium with only a short stalk. 



From the external appearance it can only be considered an 

 Aspergillus, similar to Mayer's ear-fungus or a Mucor mucedo. I 

 believe the last is most probable, because the sporangia have 

 that fringed, fan-like appearance which is given at Plate V, 

 fig, 5, as characteristic of Mucor mucedo. Also the seat agrees 

 on the whole, and we refer this fungus for that reason to Mucor 

 mucedo, although we are deprived, on account of the deficiency 

 in important particulars concerning the fungus, by Sluyter, of 

 accurate means of determination. 



Page 232. Professor Leuckart had the kindness to send 

 me a drawing of a parasite found on the pustules of Acne 

 and granular contents. Its size varied between ^ ^ '. Leuckart 

 represents the parasite with more than two articulations, always 

 according to its size. I find once five, once seven, cross-partitions. 

 However, the whole has a great resemblance to Ardtsten's 

 Puccinia. 



II. 



" On the minute structure of certain substances expelled from 

 the human intestine, having the ordinary appearance of 

 shreds of Lymph, but consisting entirely of filaments of a 

 Confervoid type, probably belonging to the genus Oscillatoria. 

 By ARTHUR EARRE, M.D., F.R.S. 



(Read before the Microscopical Society, June 22d, 1842.) 



" On a former occasion I laid before the Society the results of my ob- 

 servations upon a remarkable and exceedingly rare parasite of the human 

 body, the larva of the Antliomyia canicularis, which was expelled in vast 

 numbers from the intestine. The subject of the present communication 

 must also, I presume, be classed under the head of parasites, but occurring 

 under such a remarkable form, as to render the determination of its pre- 

 cise nature a matter of not very easy accomplishment. 



" The individual from whom the substances which I shall describe were 

 obtained, is a married female, aged thirty-five, residing at No. 28, Crown 

 Street, Soho, who is now attending as an out-patient under nay care, at 

 King's College Hospital. She is a moderately stout and healthy -looking 

 person, but has been slightly ailing for the last twelve months, and for six 

 weeks past has been subject to menorrhagia, by which she has been some- 

 what debilitated ; she has also suffered lately from slight dyspepsia. Six 



