185 



Mr. A. Earland : Orhulina universa d'Orbigny, laid open to 

 show the internal Glohigerina shell. Orhulina appears to be only 

 a Hfe stage in the history of Glohigerina, though they are usually 

 placed in separate genera. Rhumbler's theory is that the 

 Glohigerhia builds the investing spherical chamber to protect 

 the delicately spinous shell against injury, and that the internal 

 shell, being then useless, is gradually absorbed. Only about 

 2 per cent, of the Orhulina shells contain traces of a Glohigerina 

 inside. 



July 5th, 1901. 



Mr. A. E. Hilton : Female organs of Garden Spider, Ar adieus 

 diadematus (see Blackwall's " British Spiders," Plate XXYI., 

 fig. 258, d, e, and /). Mounted in Glycerine. 



Mr. J. B. Scriven : End organ of sensory nerve of the Blow- 

 Fly. The nerve is supplying a hair, and can be traced for a 

 considerable distance under the skin of the abdomen. 



Mr. A. Merlin : Mitosis in Ascaris megalocephala, showing 

 divided nucleus (the two daughter nuclei are preparing for 

 further division), asters, centrospheres, spindle, equatorial plate, 

 and chromosomes. Leitz, No. 5 objective, N.A. -77. 



July 19th, 1901. 



Mr. J. B. Scriven : Origin of sensory nerve from cephalic 

 ganglion in the Blow-Fly. 



Mr. A. Merlin : Filaria nocturna in human lung. Under a 

 Leitz No. 5 objective (5 in.) N.A. '77 and No. 4 ocular. Illumi- 

 nated by a solid axial cone giving a working ratio of '83 and 

 working aperture of '64. 



Mr. T. A. O'Donohoe : Blood taken from the heart of a goose 

 which had been killed a few days. It contains several kinds of 

 bacilli and micrococci ; stained with Eosin and Methylen-blue. 



