160 
MICROSCOPICAL SECTION. 
Meetings December 16th, 1861. 
E. W. Binney, F.R.S., F.G.S., in the Chair. 
Dr. Edward Morgan was elected a member of the Section. 
Dr. Wallich kindly presented to the Section for mounting 
several specimens of material, from his private collection, 
containing Biddulphia of various kinds, and other diatomaceee, 
from Guernsey, St. Helena, &c. 
Mr. Thomas H. Nevjll presented to the Section eight 
slides, mounted from the specimens of Soundings, No. 131, 
taken in Lat. 51° 48' N., Long. 7° 8' W., off the south coast of 
Ireland, in 40 fathoms, presented by Captain Moodie, of the 
R.M.S.S. “ Canada.” Mr. Nevill reported that the specimen 
contained Entosolenia Marginata, Entosolenia Squamosa, 
Lagen a Vulgaris, Textularia, Rotolina, Miliolina. Numerous 
spines and plates of Echini ; calcareous prisms from shells, 
&c., &c., all water-worn. The sand is composed of about 
half calcareous and half silicious material. 
Mr. Latham proposed that the subject for discussion, at 
the next meeting, should be “ On the Cause of the Metallic 
Lustre on the Wings of the Lepidoptera, both Diurnal and 
Nocturnal,” which was agreed to. Mr. Latham also reported 
upon the Ovum presented at the last meeting by Mr. Leigh. 
Mr. Latham presented to the Section a slide, mounted with a 
portion of the elytra of the Platyomus subcostatus, from 
Venezuela ; also, an oak spangle with stellate hairs. 
Mr. Binney exhibited mounted specimens of Fossil wood, 
from Standish, near Wigan ; Trigonocarpon oliviforme, 
from the lower Lancashire coal bed ; and the palate of the 
Psammodus porosus, from the mountain limestone, county 
A rm n rrli 
