Oct. A paper on "Ozone, "by Mr Peto. The history, 

 nature, and properties of ozone, together 

 with the experiments of Schonbein, Hunt, 

 Daubeny, &c., were fully described. Test 

 papers shewed its presence in the air in 

 great quantities by the sea coast, and 

 among the hills and valleys against which 

 sea winds blow; blast furnaces, friction, 

 electricity, water in comminuted particles pro- 

 duced ozone. Some considered oxygen alone 

 could not support life, and that there are two 

 forms of ozone found — ozone and ant-ozone. 



Nov. A Conversazione, at Avhich a clock and 

 cabinet for microscopic objects were presented 

 to Mr Wonfor. Mr Smith exhibited a draw- 

 ing of the pollen of Monstera deliciosa. Mr 

 Wonfor read an account of a (so-called) 

 vivij)arous fish, Ditrema Argenteum, which 

 is said to carry its young in an ovarian sac 

 or membrane, similar to the placental mem- 

 brane of mammals. Diversity of opinion 

 arose among the members, some considering 

 the case not clearly made out ; whilst others 

 thought it might be analogous to the pouch 

 of Marsupials, as the kangaroo. 



Dec. On Animal Coverings, by Mr Wonfor. The 

 coverings described and illustrated under the 

 microscope were the scales of insects and fish, 

 the shells of moUusks and Crustacea, and the 

 calcareous spicules of Doris, Gorgonia, 

 Synapta, and Cheii'odota. It was shown 

 that the scales of insects consist of two parts 

 — a superficial lamina and an interior mem- 

 brane. Though in some cases the colour 



