70 REPORT—1863, 
SERPENTINE. Common serpentine, with magnetic iron, occurs at Agha- 
doey*, near Donegal, close to the garnet rock; at Rossnakill*, in Fanad ; 
near Dunfanaghy (Greg and Lettsom). 
Noble serpentine.—Occurs near Drumbo. 
Verde antique marble—Occurs at Crohy Head*, near the coast-guard 
station. 
ZEOLITE SECTION. 
Natroxite. In the cavities of the amygdaloidal trap-dyke called Doorin 
Rock*, near Mountcharles; also in Barnesmore Mountain*, in pitchstone 
dykes ; in trap-dykes at Lough Barra, and in the Poison Glen. 
Awatcrmme. In opaque crystals, with garnet and idocrase, near the Guidore 
(Greg and Lettsom)[?]}. _ 
CaRBONATES, SULPHATES, &c. 
Caxcrre. At Cloghan; in the neighbourhood of Donegal, at Lacken and 
Laghy quarries (phosphorescent when heated). 
Black.—At Rathmullen and Culdaff*. 
Pink.—At Ards; at the Reelan Bridge. 
Arraconire. In limestone at “the Pullans,” near Brown Hall. 
Marsxe, white (statuary marble), at several localities, especially Dunlewy*; 
Marble Hill* ; Glenveagh* ; Dunfanaghy*; Croaghanarget*, parish of Kil- 
lymard. 
W"Pinknht Ards; at Muckish Mountain. 
Srarry Iron. At Glentogher, Innishowen ; at Tircallan, near Stranorlar. 
Catammye. Near Ballyshannon. 
Leap, Carnsonate or. At Keeldrum mine, 
Heavy Spar. Occurs as a gangue at Fintown*. 
Gypsum. A quantity of fibrous gypsum is lying at Woodhill, Ardara, which 
is said to have been found by Major Nesbit, the late owner, on the property, 
about thirty years ago: no person is able to give any information about it. 
The locality given by Gregg and Lettsom, yiz. Ballintemple Glen, parish of 
Errigal, appears to be incorrect, as Errigal parish is not in the county of 
Donegal, 
PyromorpHite, At Keeldrum mine, 
Avatits. In brownish-black mica near Annagary; in sphene rock at 
Barnesbeg. 
Report of the Committee appointed for Exploring the Coasts of Shetland 
by means of the Dredge. By J. Gwyn Jurrreys, F.R.S. 
Or all the objects connected with natural history which have been promoted 
by the Association, and which particularly engage the attention of a large 
class of its members, probably no one is more useful and interesting than the 
exploration of the British seas by means of the dredge. In a zoological point 
of view, such investigations are absolutely necessary for the study and 
elucidation of our marine fauna. Comparatively but few of the Invertebrata 
are met with on the shore or between tide-marks; the great bulk of them 
are found seawards. Every “zone,” or bathymetrical district, has some 
characteristic or peculiar species of its own,—although these zones cannot be 
precisely defined, and many species inhabit more zones than one. Every- 
thing in nature is gradual, and merges one into the other. There are in 
