404 Proceedings of the JFernerian Society* 



April 17. — Professor Jameson, P. in the chair. 

 There was read a communication by Mr William Brown, on the 

 nature of the currents of the atmosphere, and their influence on the va- 

 riations in the height of the barometer. Mr Goodsir communicated a 

 paper by Mr Henry Goodsir, surgeon, Anstruther, *^ on a new genus, 

 with descriptions of some new species, of Pycnogonidee." In this pa- 

 per seven new species were described, and specimens with drawings 

 were exhibited to the Society. Of the genus Orithyia, one new species 

 was described, 0. globosa ; of Nt/mpkon, four new species, N. Knoxiij 

 spmosurrij mimdumj and pellucidum; 0^ Pallene, one species, P.cir- 

 cularis. In the new genus Pephredo, one new species was described 

 P. capillata. These animals are natives of the Firth of Forth and Ger- 

 man Ocean. The paper concluded with some details regarding the struc- 

 ture of this order of Crustacea. — A paper by Messrs Goodsir and Forbes 

 was then read, in which the authors described two species of their new 

 genus Pelonaia, P. corrugata^ andglabra. (Published in the present num- 

 ber of this Journal, p. 29.) There M^as placed on the table a beauti- 

 ful geological model of Arthur Seat, exhibiting a section of the strata, 

 constructed by Robison Wright, Esq., and presented to the Society by 

 that gentleman. 



May 1 . — Professor Jameson, P. in the chair. There was read a me- 

 moir of Dru Drury, the celebrated entomologist, and author of " Illus- 

 trations of Natural History,*' by the Rev. James Duncan. Many of 

 Drury MS. journals, memorandum -books, and volumes of correspond- 

 ence, were exhibited. 



Mr Torrie afterwards exhibited and described an interesting series 

 of chalk and flint specimens, which had been collected by Mr James 

 Moore from quarries in hills near Belfast. These specimens were illus- 

 trative of the remarkable changes produced on chalk and its included 

 flints by.the action of trap-dykes. A notice on the subject, by Mr Moore, 

 was read, and a large section exhibited. Mr Torrie placed on the table 

 specimens illustrative of an analogous metamorphic action, caused by 

 the proximity of syenite to the lias limestone of the island of Skye. 



