Revieivs — Armstrong , Young 8^ Robertson — Scottish Fossils. 507 



4 a — g Monograptus runcinatus, Lapw. 4 a. b. central portion of bilateral specimen. 

 Mount Benger. 4 c. d. fully developed fragment. Glenkiln. 4 e. young 

 example showing normal mode of development. 4/, ditto., with modified 

 sicula. 4 g. initial portion of bilateral specimen. Mount Benger. 



6 a — d Monograptus BatTandei, Quess. 5 a. 5 b. proximal; 5 c. 5 d. distal portion. 

 Buckholm. 



6 a — b Monograptus exiguus, Nich. 6 a. b. full-grown example. Caddonfoot, 



7 a — c Monograptus crispus, Lapw. 7 a. complete polypary ; 7 b. proximal ; 7 c 



distal portion. Meigle HiU. 



8 a — d Monograptus Fiemingii, Salter. 8 a. b. proximal ', % c. d. distal fragment. 



Riccarton. 



9 a — d Monograptus colonus, Barrande. 9 a. — d. typical form. EUiotsfield. 

 10^ — g Var. dubius, Suess. Eiccarton. 



11 a — b Cgrtograptus Gray ice, Ijdi^vf. \\a. nat. size ; lib. magn. Penwhapple 



Glen. (Coll. Mrs. W. Gray,) 

 12a — c Bimorphograptus elongatus, Lapw. 12 «;. nat. size ; lib. magn. Dobbs 



Linn. 

 13 a — d Bimorphograptus Swanstnni, Lapw. 13 a. b. nat. size; ISc.d. magn. 



Coal-pit Bay. (Coll. Wm. Swanston, Esq.) 



lEe, IE ATI IE "W S . 



I. — Catalogue of the Western Scottish Eossils. Compiled by 

 James Armstrong, John YouN'G, F.G.S., and David Eobert- 

 soN, F.G.S. With an Introduction on the Geology and 

 Paleontology of the District. By Prof. Young, M.D. 

 (Glasgow, 1876.) 



ONE result arising from the peripatetic nature of the meetings of 

 the British Association is the publication of handy guide-books 

 of the antiquities and natural history of the district around the 

 various places visited, such as those prepared for Bristol and Belfast, 

 and, this year, for Glasgow, — in each case by the energy and exer- 

 tions of the local scientific men, and by the liberality of the Local 

 Committees of the cities visited. The guide-book for Glasgow has 

 been arranged in three separate volumes, viz. the antiquities, the 

 zoology and botany, and the geology, which latter forms the subject 

 of our notice. 



Under the modest title of a Catalogue of Western Scottish Eossils, 

 the authors have given a vast amount of information on the geo- 

 logical structure of the West of Scotland, concisely treated, with 

 numerous bibliographical references, and copious lists of localities 

 from which fossils may be obtained, so as to form a really useful 

 hand-book to the geology of the district. 



Already Messrs. Armstrong and Young had published in 1871 a 

 catalogue of the Carboniferous fossils, and Mr. D. Robertson his list 

 of the fauna of the Glacial period, which may be said to form the 

 nucleus of the present work, in which the information is brought 

 down to the present time, by newly prepared lists of the fossils 

 obtained from all the dejDosits, from the Silurian to the Glacial 

 included, — no light task, considering the limited time at their dis- 

 posal, and the evident amount of labour and care which they have 

 bestowed on the preparation. 



Not only, however, have the editors drawn largely from their own 



