Notices respecting Next Books. 4.4. 9* 



remarkable, had either escaped the notice, or appeared unwor- 

 thy the particular mention, of English geological writers, be- 

 fore the promulgation of Mr. Smith's discoveries. On the 

 north-east of Stockton and on the south of Whitehaven, this 

 red marl resting on magnesian limestone, occupies the highest 

 place in the series of strata found in those four counties. 



In the Northumberland and Durham maps, Mr. Smith has 

 continued the plan, of which he first gave an example in his 

 tour-sheet Yorkshire map, of colouring the thicker sandstone 

 rocks, interlaying the coal strata, and so has divided the Tyne 

 and Wear coal-field into several stratigraphical divisions, cor- 

 responding with the bassets of the known seams of coal, in each 

 ot such divisions ; an arrangement through the study of which, 

 it is probable that valuable collieries may hereafter be opened 

 in estates and places where they are now unknown. 



Part I. Volume V. of The Memoirs of the Wernerian Natural 

 History Society of Edinburgh, for 1823-4, is just published, 

 and contains the following papers. 



By Dr. R, Knox. An Account of the Foramen centrale of 

 the Retina, generally called the Foramen of Soemmering, as 

 seen in the Eyes of certain Reptiles. Observations on the Ana- 

 tomy of the Duck-billed Animal of New South Wales, the Or- 

 nithorynchus paradoxus of Naturalists. Additional Observa- 

 tions relative to the Foramen centrale of the Retina in Reptiles. 

 Observations on the Organs of Digestion, and their Appendages, 

 and on the Organs of Respiration and Circulation, in the Orni- 

 thonjvehus paradoxus. Inquiry into the Origin and Characte- 

 ristic Differences of the native Races inhabiting the Extra Tro- 

 pical Part of Southern Africa.— By L. Edmoiidston, Esq. Ob- 

 servations on the lesser Guillemot and Black-billed Auk, the Co- 

 lymbus Minor and the Alca Pica, of Linnaeus. — By Dr. R. K. 

 Greville, and G. A. W. Arnott, Esq. Tentamen Methodi Mus- 

 corum; or, A New Arrangement of the Genera of Mosses, with 

 Characters and Observations on their Distribution, History, and 

 Structure.— By M. Miller, Esq. Register of the Weather at 

 Corfu, during the Months of August, September, October, and 

 November, 1821.— By A. Marshall, Esq. Contribution to a 

 Natural and Economical History of the Coco-Nut Tree.— By 

 John- Coldstream, Esq. An Account of a Series of Thermome- 

 trical Observations, made hourly at Leith, during Twenty-four 

 successive Hours, and once every Month, from July 1822 to 

 July 182.3.— By G. A. W. Arnott, Esq. Notice of a Journal 

 tf a Voyage from R'o de Janeiro to the Coast of Peru, by Mr, 

 William Jameson, Surgeon.— By David Don, Esq. A Mono- 

 Vol. (i3. No. :',\ 1. June 182*. ' f* L graph* 



