gt 



n of Manus of 

 exhibited three 



Dr. B. C. 



of 5 centim. head and buttocks measurement. They pass respec- 

 tively through the second row of the carpus, through the proximal 

 ends of the metacarpal bones, and through about the middle of the 

 same bones. The first section, viz. that through the second row of 

 the bones of the carpus, shows the following points : — 



282 Dublin Microscopical Club. 



size ; but it is more constricted under the upper angles, and the 

 lateral undulations are stronger. Mr. Bissett and Mr. Boy seemed 

 to hold that this was truly distinct from Nordstedt's form. 



Alliospora sapucayce, n. g. et sp., Pirn. — Mr. Pirn showed a re- 

 markable black mould from the kernel of a Sapugaya-nut, which 

 will most probably form the type of a new genus. It forms a dense 

 black velvety mycelium on the kernel of the nut, giving off numerous 

 fertile hyphae. These appear under the microscope of a very deep 

 brown colour and somewhat septate. The heads are globose with 

 chains of spores, much resembling some of the smaller forms of 

 Aspergillus. The chains of spores, however, instead of being 

 attached end to end, as in that genus, like a string of beads, arise 

 from extremely delicate threads, reminding one of miniature onions 

 on a hank.. The fertile hyphae have very strongly marked side 

 walls. In allusion to the onion-like arrangement of the spores, Mr. 

 Pirn would suggest as a provisional name Allio$2>ora sajmcayce. 



Section of Shell of Limax maximus. — Prof. Mackintosh exhibited 

 the shell of Limax maximus, a specimen he had found in the month 

 of December. The shell showed on its upper surface numerous 

 small spicules, which in some places were separate, in others 

 grouped in rosettes ; and near the margin of the area were to be seen 

 ' large polygonal crystals, apparently like those of which the bulk of 

 the shell is composed. Prof. Mackintosh supposes that the spicules 

 represented the first deposits of calcium carbonate laid down when 

 the secreting-power of the cells was but slight, and that as the season 

 opened and the increasing warmth stimulated the vital functions 

 the larger crystalline deposits made their appearance and superseded 

 the lower spicular growth. 



Sections to illustrate multiple Staining. — Mr. B. Wills Bichardson 

 exhibited sections in part illustration of a paper on multiple stainin 

 published by him in last December's number of the Journal of the 

 Boyal Microscopical Society, viz. : 



JSo. 1. A true double-staining of a transverse section of Sugar- 

 cane, in atlas scarlet and soluble blue. 



STo. 2. Quadruple-staining, in atlas scarlet, soluble blue, iodine, 

 and malachite greens, of stem of Bignonia. 



]S T o. 3. A section of Potato in atlas scarlet and a mixture of 

 iodine and malachite greens, the malachite green being in excess. 

 In the specimen the starch-grains are rich green, and the walls of 

 the loculi a very delicate scarlet. 



