291 





OBJECTS EXHIBITED, WITH NOTES. 

 October 4th, 1901. 



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Mr. T. N. Cox : Three slides of Pinna Shell, under polarised 

 light. (I) Transverse section, P. 2>^ctinata; (2) Longitudinal 

 section, P. rudis ; (3) Prisms. 



Mr. J. T. Holder : Two transverse sections of Caterpillar, 

 showing (1) legs, etc.; (2) the vegetable matter that has been 

 devoured (double stained). 



Mr. D. J. Scourfield : A living specimen of Hydra vulgaris, 

 stained with a weak solution of methylene blue. The stain 

 seems to be taken up by a number of ovoid granules within 

 the cells. 



Mr. T. A. O'Donohoe : The teeth or scrapers of the Blow- Fly, 

 and another fly (species not known). Those of the blow-fly are 

 all bifurcate, and are in three rows on each side of the gullet, 

 whereas those of the other fly form four rows, in the anterior 

 one of which the teeth are not bifurcate, but quite round at the 

 ends. 



Mr. A. E. Hilton : Bladderwort {Ut^ncularia), showing bladders 

 containing entrapped aquatic animalcules ; mounted in formalin. 



October l«th, 1901. 



Mr. A. E. Hilton : Tail of Fantail Fly, BolicTiO'pus nobilitatus^ 

 showing the male reproductive organ. Male and female specimens 

 also exhibited. 



Mr. A. Earland : Trifurcate siliceTous spicules of Sponge, 

 Cortidum kiitoni, from Colon, Central America. Described in 

 Anil, ami Mag. Nat. Hist. 4 S., vol. XIV., p. 253. 



Messrs. R. and J. Beck : Pleicrosignuc angidatum, under ^V-in. 

 oil-imm. objective, with No. 4 eyepiece. Microscope fitted with 

 Ashe's two-speed fine adjustment. (See ante, pp. 135-6.) 



