10 PROCEEDINGS OF THE 



to find four or five terminal buds growing in an axil, and at this 

 point there is an active formation of tissue. There is frequently also 

 a lateral bud just below the axil, and the growth of the twig is thus 

 often driven into a lateral direction. 



Mr. Sydney Webb exhibited a living specimen of Sarrothripta 

 revayana caught on the 12th October at Redstone, thus confirming 

 Brewer's record of this moth. 



Evening Meeting, Nov. \Oth, 1876. Mr. A. J. Crosfield 

 exhibited specimens of the following plants found by himself in this 

 district; Anthemis tinctoria found on Reigate Hill; Alyssum caly- 

 cinum,a plant common in the south of France, found in a clover-field 

 on Reigate Hill; Campanula hederacea, formerly found on Reigate 

 Heath but supposed to be extinct there; it has re-appeared in some 

 abundance the last two years; Lepidium Draba, a plant found in 

 the south of Europe; this has been observed abundantly on the 

 railway bank between Forest Hill and New Cross, not strictly within 

 our district; Petroselinum segetum found by the roadside on Wray 

 Common, not mentioned in the "Flora of Reigate;" Senebiera 

 Coronopus which has been found in various localities in the neigh- 

 bourhood; Epipactis latlfolia, and Epipactis media var. purpurata, 

 found in Gatton Wood. Dr. Bossey mentioned localities in other 

 parts of the country where he had found many of these plants, and 

 made some remarks on the various causes for the rarity of difi"erent 

 species. He also mentioned having found Salvia pratensis in Gatton 

 Park. 



Mr. Sydney Webb exhibited feeding larvae of Coleophora albicans, 

 a Tineina new to the Reigate fauna. They were found on Achillea 

 Millefolium at Redstone in the present month. 



Dr. Bossey read a paper on Diatoms, which he illustrated by 

 numerous specimens exhibited under the microscope. In reference 

 to the advance made in the knowledge of Diatoms, he stated that 

 owing to their minuteness, they were entirely unknown till discovered 

 by the aid of the microscope, the first known species, Gonphonema 

 geminatum, having been discovered in 1773 by O. F. Muller. Fifty 

 years ago, the number of known species was only 49 ; now the 

 European species are computed to number about 4000. He explained 

 the structure, mode of propagation, and habitats of Diatoms, and 

 stated the grounds on which they have finally been considered to 

 belong to the Vegetable Kingdom. He also alluded to their use as 

 test objects in ascertaining the magnifying and defining powers of 

 a microscope, many of the species being marked with regular trans- 

 verse lines. He gave a table of some of the species found in this 



