32 



fore, sought to obviate this by clothing the chimney with felt, and found it to 

 answer the purpose very well. The box itself absorbed some of the heat, and 

 the felt so far absorbed the rest that no inconvenience could now be said to arise 

 from that source. The felt was sewn on round the top of the chimney, and 

 fixed at the bottom by a piece of coiled watch-spring, the chimney being too 

 hard to pierce through. The case and lamp could be supplied complete at a 

 cost of 17s. 6d. or I83. 



The Chairman thought these contrivances very ingenious, and expressed the 

 obligation of the Club to Dr. Matthews for bringing them before their notice. 



Mr. Green intimated that he had taken the opportunity of bringing the lime 

 light to the last gossip meeting, and the unanimous opinion of those members 

 who saw the diatoms illuminated by it was in accordance with the description 

 given in his paper. The hemispherical dots were particularly high in Hippo- 

 campus ; in Formosum there was evidently a flattened surface, and this was still 

 more so in Angulatuni. It should be remembered that there was no covering 

 glass over the specimens, neither were they seen through any other medium, and 

 when shown thus in their natural condition by transmitted light as opaque objects, 

 the "file marks" were seen to be unquestionable depressions. In this contro- 

 versy, as in some others, it might be said that the opinions of both sides seemed 

 to be true. In order that those members who were not present on the occasion 

 when he exhibited the diatoms before might have an opportunity of seeing and 

 judging for themselves, he had again brought the lime light with him, and 

 should be happy to exhibit the objects at the close of the meeting. 



The proceedings then terminated with a conversazione, at which the following 

 objects were exhibited : — 



Wiug of Jloqyho Menelaics by Mr. Golding. 



Unmounted Diatoms, illuminated as opaque objects,by ^ 

 the lime light 



Injected Skin of Frog Mj. de Guimaraens. 



Fungus Leaf of Coleus Mr. Jackson. 



Confervse Mr. Martinelli. 



Tongue of Blow-Fly .. Mr Eichards. 



Antennae of Lace Wing Fly Mr. Sigsworth. 



Transverse Section of Ox-tongue Mr. J. A. Smith. 



Heliopelta metii Mr. Geo. Williams. 



Attendance — Members, 89 j visitors, 11. 



R. T. Lewis. 



f Mr. Green . 



March 8th, 1872. — Conversational Meeting. 



The following objects were exhibited x— 



Red Earth Mite Mr. Fitch. 



V(\\\g of Pterofliorus -pcntadactylus... Mr, Ward. 



Chdex annulata, Large Winged Gnat Geo. Williams. 



Various Lichens W. H. Golding. 



Parasite of Ox H. E. Freeman. 



Australian Polyzoa, &c E. P. Pett. 



Echinus Spines ,, 



Thyamis femoralis, Gyqss Flea F. W, Andrew. 



Various Echinus Spines in Section Mr. Gibson. 



Anthers of Mallow Mr. Sigsworth. 



Attendance— 63 members, 6 visitors. 



