250 



the sponge than that they fed upon it ; this would, no doubt, account for their 

 presence there. He then drew upon the black board a diagram illustrating the 

 chemical changes which he supposed to occur during the process of substitution 

 to which he had previously referred. 



The meetings for the ensuing month, and the names of the gentlemen pro- 

 posed for election at the next meeting, were then announced, and the pro- 

 ceedings terminated with a conversazione, at which the following objects were 

 exhibited : — 



Anguinaria Spatulata by Mr. Bartlett. 



Marine Polyzoa (Bot/;er&anA;m) Mr. G. Cocks. 



Rat Floa, with curious filamentous extrusions... Mr. Furlonge. 



Pollen of Hazel, showing pollen tubes ... 



Oantliocampus Minutus (alivej 



Freshwater larva (sp. ?) 



Foot of Dytiscus (opaque) 



Santonine ... 



Alimentary Vessel of Blow Fly 



Section of Flint, showing triradiate spicules 

 and gemniules of Sponge 



CantJwcampus Minutus (alive) ... 



Mr. Glasspoole. 

 Mr. Martin elli. 

 Mr. J. A. Smith. 

 Mr. Topping. 

 Mr. C. Underwood. 

 Mr. Watkins. 



Mr. T. C. White. 



Mr. G.Williams. 



Attendance— Members, 87 ; Visitors, 7. Total, 94. 



March 13th, 1874.— Conversational Meeting. 



The following objects were exhibited : — 

 BoiverhanHa Ophiocoma and other forms of 7 



marine life ... 5 



Section of eye of Drone- fly 



Septaria from the London Clay ] 



Iron Pyrites from the Chalk 



Clay Ironstone from the Coal Measures 



(All treated with dilate acid to show the 

 silicified organic structure.) 



Euglena virklis (alive) 



Serpida contortuplicata 



Sections of Spinal Cord, cut to t,5oo of an inch ... 

 *' Tasting Cups" from tongue of Eabbit 



Spores and Threads of Tricliia 



Section of Leaf of Oncidium 



Medulla spinalis 



Plenrosigma angulatum 



By Mr. Curties. 



Mr. 

 Mr. 



Mr. 

 Dr. 



Mr. 



Mr. 

 Mr. 

 Mr. 

 Mr. 



Dunning. 

 M. Hawkins 

 Johnson. 



Martinelli. 

 Matthews. 

 E. T. Newton. 



Oxley. 



Topping. 



Ward. 



G. Williams. 



Attendance— Members, 65: Visitors, 5. 



