Notices of Mf^moirs — J. Smith — Ayrshire Drift. 225 



Livr. 65,66 pp. 33-48 18ol ... (N.J., 1851, p. 683) 



1851 

 1852 

 1852 

 1852 

 1853 

 1853 



1852 [3] ... 

 1854 

 1854 

 1855 

 1855 

 1856 

 1856 

 1857 

 [1860] 



With p. 536 of this volume D'Orbiguy's work finished ; precisely 

 the same editorial note is given on p. 537 as has been quoted undt-r 

 vol, vi of the Cretaceous Series, with the exception of the date, 

 which is " Octobre " instead of " Aodt." Pages 537 to the end of 

 this volume may therefore be regarded as dated 1860. 



Started afresh in 1861, the Committee of Publication for the 

 " Paleontologie Frangaise " has followed the excellent practice of 

 printing an ofiicial statement of the dates of publication in each 

 volume. These present notes will, I trust, help to clear away many 

 difficulties in zooloaiical nomenclature. 



65,66 



pp. 33-48 



67-70 



49-112 



71-73 



113-152 



74-76 



153-192 



77-79 



193-232 



80-83 



233-288 



84-86 



289-336 



87-89 



337-384 



90 



385-392 



91-94 



393-424 



95-100 



425-472 



101 



473-480 



102-105 



481-512 



106 



613-520 



106 [71, 108 



521-536 



[?] 



537-end 



1852 



61 



1852 



308 



1852 



606 



1852 



945 



1853 



448 



1853 



820 



1854 



329 



1854 



432 



1855 



65 



1855 



683 



1856 



30 



1856 



677 



1857 



156 



1857 



318 



intotigies OIF ]\^:BivnoiK,s- 



Thk Drift or Glacial Deposits of Ayrshire. By John Smith. 

 (Reprinted from the Transactions of the Geological Society of 

 Glasgow, vol. xi. Supplement.) Svo ; pp. 134, with Index. 

 (Glasgow, 1898.) 



THAT this is an age of detail is well exemplified in the present 

 memoir. The author records particulars of numerous sections 

 of glacial drift in various parts of Ayrshire, and illustrates his 

 observations by means of a sketch-map and fifty-two diagrams. The 

 Geological Survey in Scotland has been singularly behindhand in 

 publishing Drift Maps of the country, for, with the exception of 

 some few six-inch maps where the Glacial gravels and Boulder-clay 

 are represented by a vague kind of stippling, no representations of 

 these Drifts have as yet been published. This is much to be regretted 

 considering the scientific interest as well as the practical value 

 attached to such maps ; and the map now published by Mr. Smith 

 fails to give any adequate idea of the distribution of the Drift. The 

 author's observations lead him to conclude that the Ayrshire drift- 

 beds comprise about eight divisions. In some sections he finds four 

 Boulder-clays, and in all he notes the presence of marine fossils. 

 Before beginning his critical examination he believed that the 

 various Boulder-clays were ' ground-moraines ' ; eventually he came 

 to the conclusion that they were deposited in water. That some of 

 his Boulder-clays, such as he describes as pebbly clays, may have 

 been deposited in water, is not likely to be questioned. In other 



DECADE lY. — VOL. VI. — NO. V. 15 



