1911.] Proceedings of the Asiatic Society of Bengal. Oxxiii 
thanum, niobium, tantalum, thorium, uranium, and yttrium. 
2) Petalite, a lithium silicate from the Uté lithia mine, 
the original locality for the element lithium. 
(3) Galenobismuthite, containing about 13 per cent. of 
selenium, from the Falun copper mine. 
4) A 
minerals not found elsewhere. The minerals collected here 
comprise native lead; the following silicates containing man- 
ganese (varieties of manganskarn), schefferite, rhodonite, rich- 
terite, tephroite, inesite; the silicate of lead, barysilite; the 
ead-manganese silicate, kentrolite; the arsenates of manganese, 
berzeltite, allactite ; the lead-manganese arsenate, caryinite; the 
lead arsenates, hedyphane, ecdemite; also the oxides of man- 
ganese, hausmannite and braunite; and finally the borate of 
manganese and magnesium, pinakiolite. 
(5) Ganomalite, a lead-manganese silicate, and piedmonitite, 
the manganese-epidote, from the Jakobsberg manganese mine. 
6) Pyrosmalite, an iron-manganese silicate, and beautiful 
crystals of diopside, calcite, and magnetite, from the Nordmark 
iron mines. 
' Dr. Hope exhibited and described Poecilocoris latus, Dall, 
an insect pest of tea. 
This insect which feeds on tea seed has been known since 
the early days of the Indian tea industry. Mature and im- 
mature specimens and eggs will be shown and its feeding habits 
described. ; 
Recent investigation has indicated that the insect is pro- 
bably indirectly responsible for the damage which so often 
occurs to tea seed by the development of fungi in and between 
the cotyledons. 
Dr. Annandale exhibited a freshwater Medusa from the 
Western Ghats. 
The Medusa was taken by Mr. S. P. Agharkar of the 
Elphinstone College, Bombay, in small streams running in the 
Satara district into the Krishna river. It is probably identical 
with Limnocnida tanganyicae, a species hitherto found only in 
the great African lakes and at the mouth of the River Niger. 
The specific identity, however, must remain a little doubtful 
until fresh specimens have been examined. 
‘Mr. Gravely exhibited living Pedipalpi and made the 
following remarks on the distribution of the Order. 
The Pedipalpi are an Order of Arachnida which take their 
name from the fact that the first pair of legs are antenniform 
