ON PHOTOGRAPHS OF GEOLOGICAL INTEREST. 411 



APPENDIX I. 



Schedule of the collection of Photographs of Geological Interest, as arranged by the 

 Cojnmittee appointed by the British Association, forwarded {in accordance with 

 a resolution of the Council) to the Director-General of the Geological Survey, to 

 be deposited in the Museum of Practical Geology, 28 Jermyn Street, London. 



Arrangement of the Collection of Geological Photographs. 



Note. — The Committee .appointed to undertake the ' collection, pre- 

 servation, and systematic registration of photographs of geological interest 

 in the United Kingdom ' began its operations in 1889. During the first 

 two years prints were received mounted on cards without restriction as to 

 size. Afterwards, to secure uniformity, a standard mount was adopted, 

 with perforated edges for binding in cases (size 15^ x 12 inches). It was 

 not found practicable to transfer the early portion of the collection to the 

 standard-sized mounts in cases. The arrangement of this portion has 

 therefore had to be made in portfolios, boxes and cases of various sizes. 

 When the size is not stated it will be understood that the cases consist of 

 the standard-sized mounts, measuring 15| x 12 inches. 



Inventory. — The following are on irregular sized mounts, dimen- 

 sions of the largest mounts being gi\-en below : — 



CONTENTS. 



Miscellaneous (I.) Size up to 2\ x IS inches. 



No. of 

 Description of Photographs 



Case, &c. in Case, &c. 



Part 1. (a) Series of Mr. G. H. Morton, illustrating the Carboniferous 

 (Cloth Case.) limestone of Llangollen. 



(&) Series of the Yorkshire Geological and Polytechnic Society. 



(c) Series of the Leicester Literary and Philosophical Society (2). 



(d) Series of Mr. Ussher, illustrating the granite structures of 



Dartmoor, &c. 



(e) Chalk, Co. Antrim (enlargements), by Miss M. K. Andrews 38 



Northumberland and Durham (I.) Size vp to 14 x 10 inches. 



Part 2. Mr. E. J. Garwood's (First) Series, illustrating Sections in Coal 

 (Cloth Case.) Measures, &c 14 



Lancashire and Cheshire. Size \iiX\l inches. 



Part 3. Series cf the Liverpool Geological Society and the Leeds Geo- 

 (Cloth Case.) logical Association, ^tc 44 



North Wales and Isle of Man (I.) Size 14x12 inches. 



Part 4. Series of the Liverpool Geological Society, Leeds Geological 

 (Portfolio.) Association, and Mr. A. O. Walker 3G 



Ireland (I.) Size 12x10 inches 



Part 5. (a) Series of Professor V. Ball, illustrating the Cambrian quartz- 

 (Portfolio.) ites and Boulder beds, drift on Cambrian rocks of Howth, 



Carboniferous Limestone, &c. 

 (J) Series of Miss Andrews, illustrating Chalk at Kenbane Point, 



Antrim basalts and granite boulders, Newcastle , . 25 



