284 



but if he began to generalize that the markings were on one particular 

 layer, he was sure to meet with another specimen which would upset his 

 generalizations. It required great caution before they could come to a con- 

 clusion that anything was a universal structure, because general observation 

 showed them that the variety in such things was infinite. It might be 

 quite true that in this instance the visibility of the supporting grating was 

 what gave the appearance of markings, but if it were so he should be by no 

 means prepared to admit that this proved there were no markings either on 

 the external or, if there should be one, on the internal coverings of this 

 grating. It was a matter which required great caution in dealing with, but 

 undoubtedly Mr. Nelson's paper would be of material assistance in enabling 

 any one to arrive at a conclusion. 



The thanks of the meeting were unanimously voted to Mr. Nelson for his 

 papers. 



Announcements of meetings, &c, for the ensuing month were then made, 

 and the proceedings terminated with the usual Conversazione, and the 

 following objects were exhibited : — 



Ichneumon and its pierced aphis 



Phora rujvpes (Window-fly) 



Hydrachnida 



Mantle of Terebratula caput-serpentis 



Section of Carboniferous Limestone 



the Polyzoa Bed at Clifton ... 

 Section, Ovary of Orchid 

 Spicule of Chirodota from Chalk 



from 



I 



Mr. F. W. Andrew. 

 Mr. F. Enock. 

 Mr. C. Kousselet. 

 Mr. J. Slade. 



Mr. G. Smith. 



Mr. A. C. Tipple. 

 Mr. C. Upton. 



Attendance — Members, 56 ; Visitors, 7. 



February 12th, 1886. — Conversational Meeting. 



The following objects were exhibited : — 



Hydrozoa, Campanularia flexuosa 

 Head of Beetle, Silis Madagascariensis 



Plant Bug, Mymus miriformis 



Horizontal section, tongue of Wasp ... 



Labrum of Wasp 



Hippocampus embryo ... 



Cocoon of House-builder Moth 



Sponges from River Lea 



Menthol 



Diatoms, Cocconeis costata var. pacifica 

 Nav. cuspid a ta- 



il 



Mr. F. W. Andrew. 

 Mr. C. Collins. 

 Mr. F. Enock. 

 Mr. F. Fitch. 



>> >i 

 Mr. H. G. Glasspoole. 

 Mr. J. D. Hardy. 



Mr. G. E. Mainland. 

 Mr. H. Morland. 

 Mr E. M. Nelson. 



