196 



chlorophyll -band. In the angles of the forks of the branching protoplasmic 

 threads there is usually visible, in strongly growing Spirogyra filaments, a 

 thickening of the substance of the thread in which a vesicle, perhaps a kind 

 of amylum-body, lies. There is then, in Spirogyra, a direct connection 

 through the threads between the amylum-bodies themselves, and also 

 between them and the nucleus." 



Mr. Michael called attention to a slide which he had brought for exhibi- 

 tion of a specimen of the genus Nothrus, the individuals in which were not 

 so highly chitinized as in some genei"a nearly allied to them — the leathery 

 cuticle existing in the adult. Being thus deprived of their ordinary means 

 of defence, it was curious to notice what other means were taken for the 

 protection of their bodies. As a rule the Oribatidce had rounded arched 

 bodies upon which nothing would lodge, but in the particular genus mentioned 

 the body was chiefly oblong or square, and flat or concave, it was also 

 furnished with a number of curved hairs, which effectually prevented dirt 

 from falling off, so that these creatures were in the habit of carrying about 

 a quantity of earth upon their backs, which concealed and protected them 

 from their enemies. 



Votes of thanks to the President and to Mr. Michael were unanimously 

 passed. 



Announcements of excursions, &c, for the ensuing month were made, 

 and the proceedings terminated with the usual conversazione, at which the 

 following objects were exhibited : — 



Hydrodictyon utriculatum Epistylis anastatica Mr. J. D. Hardy. 

 JYothrus sjJiniger... ... ... ... ... Mr. A. D. Michael. 



Section of the Meteorite that fell at Ensis- 



heim Nov. 7, 1492 



Attendance— Members, 30 ; Visitors, 1. 



' j Mr. Geo. Smith. 



September 8, 1882. — Conversational Meeting. 



The following objects were exhibited : — 



Hairs on petal of Pansy ... ... ... Mr. F. W. Andrew. 



Polyxenus lagurus ... ... ... ... Mr. A. L. Corbett. 



Cyclosis in Nitella flex His ... ... ... Mr. H. G. Glasspoole. 



Lagena sulcata, from Dog's Bay, Ireland - Mr. H. Morland. 

 Navicula rhomboides, in bal&am, shown by 



Powell and Lealand's oil-immersion l-25th 



objective N.A. 1 38, with dry achromatic 



condenser, direct light and full aperture 

 Lingual teeth of Aplysia leporina ... ... Mr. J. J. Vezey. 



Attendance — Members, 32 j Visitors, 2. 



Mr. E. M. Nelson. 



