536 Roberts—On the Rocks and Minerals of Finland. 
in trap; ‘smaragds,’ rough beryls, in crystals five to seven inches 
in length, from Tammela, Kimito, &c., also met with, more rarely, 
in pale-green and blue transparent crystals (precious beryl), at 
Tammela ; tourmaline of excessive brilliancy in albite, at Imbelax— 
an excellent group of crystals; a large group of hornblendic minerals, 
conspicuous among which is pargasite, occurring in semi-transparent 
leek-green nodules, set like plums in a pudding of calcareous spar, 
associated with jet-black ‘plums’ of hornblende, crystals of sphene 
of vivid brightness, containing titanium, shining scales of yellow 
glimmer, dioptase, graphite, and garnets of almost every kind. One 
specimen exhibits pargasite in association with four of these minerals. 
The plums of pargasite have a worn rolled-up appearance, and are 
in many instances full of air-cavities. This interesting mineral with 
its associates occurs most abundantly at Pargas. In this district of 
Finland, minerals belonging to the pyroxene group, such as sahlite, 
coccolite, diopside, bronzite, malackolite, and funkite are met with. 
The garnet family is well represented. Almandines, the aristocracy 
of the tribe, occur at Abo, Imbelax, and three other places ; the 
richly- -coloured Romanzowites occur at Pargas and Kimito ; chon- 
drodites, red, black, and tr anspar ent-yellow, are contributed by Lojo 
and Pargas ; iwaarite (Caz Si + Fe, Si) + Ca Ti + 2 Ca Si) by 
Kuusams ; and jewreinowite, scarcely less rare, having the formula 
3 (Ca, Na, K) Si + Al, Fe) Si, from Manzilé. Rocks of the fel- 
spathic group are plentifully distributed throughout Finland ; white 
and flesh-coloured albites too are common, with their ordinarily im- 
bedded minerals. White albite, it may be remembered, is the min- 
eral associated with felspar in Pompey’s pillar. 
In section five we meet with some rare altered forms of iolite, 
chief of which is gigantolite, in large crystals of a dark shining steel- 
grey in gneissoid granite, at Tammela, and pyrargyllite, a dull-brown 
mineral, infusible before the blow-pipe. 
In the last group, comprising the minerals the exact composition 
of which is undetermined, we may mention thermophyllite, a silicate 
of magnesia, occurring in small silvery-white crystals in a steatite- 
like base, which is probably the same mineral in an amorphous state ; 
sundvikite, probably an altered anorthite; and a curious black copper 
from Pielisjiarwi. 
JII.—DEscRIPTIONS OF SOME NEW EOCENE SPECIES OF CYPRZA AND 
MARGINELLA. 
By Frep. E. Epwarps, F.G:S. 
(PLATE XIV.) 
QIN CE the publication by the Paleontographical Society of 
the third part of my monograph of the ‘ Hocene Mollusca,’ 
containing descriptions of the several Eocene species of Cy- 
prea ane known, I have obtained from the beds in the New 
Forest, forming parts of the Bracklesham Bay series, several 
additional species; and Mr. Wetherell has also been so fortu- 
