ON PHOTOGRAPHS OF GEOLOGICAL INTEREST, 379 
Duplicates 
Pre- New 
_- tae ens Total || Previous| Additions (1899) 
tion (1899) galled Rotel 
| tion Prints Slides 
| 
IRELAND— | } 
Antrim . 2 165 17 | 182 26 3 a 29 
Cones. oe 1 1 2 == — — — 
Donegal . . 35 4 39 2 == a5 2 
Down . 3 55 DAs) i reGOrye yy oo WS 1! a 16 
Dublin . R 21 6 27 || 3 _— _- 3 
Galway . . 24 4 28 || 3 = -— 3 
Kerry . ‘ -—— 10 sp ineipe = ; — a= — 
Londonderry . 19 3 go" a — 1 
Mayo . 4 6 8 14 sO 1 — — 1 
Tipperary . = 1 te ie = = — 
Others . ‘ 18 = 18 || 1 Bis ~~ 1 
Total. .| 344 68 412 | 52 4 — 56 
! | 
Rock STRUC- | 
TURES. 5 73 4 (i fee | 3 _ celeep | 
Enetanp | 1179 175 | 1354 || 180 gee red RNs 
WALES. ely 323 ZUM Pere) Bees = — 43 
CHANNEL Is- |} 
LANDS : 14 1 ye se =: 
IsLE OF MAN. 52 SS re 4 = — 4 
ScoTLAND |) ele 5b! ||, Zak 48 28 1 77 
IRELAND . : 344 68 412 52 4 — 56 
Rock StTRUC- 
TURES. .| 73 4 77 «|| 28 3 a 31 
FOREIGN . i a —- | — | 3 22 2 ra 
Total . . | 2001 324 | 2325 358 61 6 425 
Mr. Welch contributes, through the Belfast Naturalists’ Field Club, 
43 platinotypes taken with his usual skill in Ireland. Glaciated surfaces 
and transported blocks, the Silurian district of Mayo and Galway, the 
volcanic district of the North-east of Ireland, and various tectonic 
phenomena are illustrated by the photographs. One set illustrates a new 
industry in the country, the excavation of the diatomaceous clay of the 
river Bann for use as ‘ Kieselguhr.’ Mr. Phillips also sends through the 
same Club a set of Irish photographs. 
The Midland district is beginning to be better represented in the 
collection, chiefly owing to contributions by Mr. W. Jerome Harrison, 
Professor Allen, Mr. Evers Swindell, Mr. Watson, and students of Mason 
University College. Thus the Nuneaton Cambrian and Precambrian 
Rocks show a very considerable series, while the Abberley Hills, the 
Permian, Trias, and Lias of the district, the volcanic rocks of the South 
Staffordshire Coalfield, the boulders and superficial deposits, are all being 
illustrated. 
Mr. Garrett, of the Durham College of Science, gives photographs 
taken under the direction of Professor Lebour along the Northumberland 
and Durham Coast and elsewhere, illustrating chiefly the Carboniferous and 
Permian Rocks, and including the remarkable structures found in the latter. 
