Proceediiiffs. clxix 



good, and several photographs of animals and birds were taken 

 by some of the photographic members of the Club. 



During the year twelve papers have been read at the ordinary 

 meetings of the Club, and one lecture has been delivered in the 

 large Public Hall, to which members and their friends were 

 invited. The subjects of the papers were as follows, viz. : — 



February 11th. — The "Annual Eainfall Report" was pre- 

 sented by Mr. F. C. Bayard, the statistics and calculations being 

 tabulated with our Secretary's usual care and painstaking. The 

 tables appear iu full in our last Eeport (Trans., Art. 91, p. 285). 

 " Discussion on Wandle Temperatures," from observations by 

 Mr. F. C. Bayard. These also appear m extenso in the above- 

 named Report (Trans., Art. 92, p. 316). 



jSlarch 11th. — " The Respiration of Insects," by Mr. C. H. 

 Goodman. This very interesting paper, which was admirably 

 illustrated by slides thrown on the screen by the optical lantern, 

 referred, firstly, to the various forms of respiratory apparatus, 

 and then proceeded to deal with the structure and functions of 

 branchiae, tracheae, spiracles, &c., of land and aquatic insects. 

 The paper itself will appear in our 'Transactions' (Trans., 

 Art. 93). 



April 8t,h. — " Notes on the Prehistoric Lake Dwellers of 

 Switzerland," by me. In this paper I briefly described the 

 investigation of these lake deposits. I then alluded to the 

 various forms of stone and bone implements used by these early 

 people, and then gave a brief sketch of the probable condition of 

 their civilisation and social status as deduced from an examina- 

 tion of the relics left by them. This paper will appear in our 

 ' Transactions ' (Trans., Art. 94). 



May 'Srd. — " Volcanic Action and the Structure of Igneous 

 Rocks," by J. J. H. Teall, Esq., M.A., F.R.S., F.G.S. This 

 paper dealt in a very descriptive manner with volcanic pheno- 

 mena, and was illustrated by means of slides thrown on the 

 screen by the optical lantern. Volcanic cones, intrusive veins, 

 traps, and dykes were thus illustrated. Views of existing vol- 

 canoes and craters were shown, as well as cliff sections showing 

 the effect of volcanic action in early geological times. Some 

 views of dykes were shown, in which the intrusive vein of 

 volcanic rock had been left like a wall, owing to the disintegra- 

 tion of the softer sandstone through which it had been originally 

 intruded. The lecturer then described the structure of volcanic 

 rocks and their mineral composition, illustrating his observations 

 by a fine series of microscopic rock sections ; these showed the 

 structures of granites, syenites, basalts, pitch-stones, I'hyolites 

 &c., and referred to some specimens of the latter from the north 



