330 MISCELLANEOUS; 



Introductory and phy.-ical, pp. 1-40. Stratigraphical (historicsJl) 

 and palaeontological, an account of the formations from Laurentian 

 upwards, pp. 41-167. Post- tertiary, glacial period, and prehistoric, 

 pp. 168-184. Succession of animal and vegetable life, pp. 185-188. 



E. B. T. 



Skertchly, S. B. J. Geology. Pp. vii, 184 ; 21 woodcuts and 18 

 groups of fossils. 8vo. London. 



Origin (cosmical) of earth, pp. 1-8. Igneous action and rocks classi- 

 fied, earthquakes, upheavals, &c., pp. 9-56; Metamorphism, pp. 57- 

 60. Aqueous action and rocks, pp. 60-81. Denudation, climate, life, 

 pp. 82-108. Stratigraphical history of formations, pp. 109-169. 

 Appendix on field-work. Table of ranges of important genera. E. B. T. 



Smock, Prof. J. C. The Use of the Magnetic Needle in Searching 



for Magnetic Iron Ore. Trans. Amer. Inst. Min. Entj. Vol. iv. pp. 



353-356. Iron, n. s. vol. viii. pp. 585. 



Gives results of observation taken in New Jersey under the following 



headings : — Geological Occurrence of Magnetite in New Jersey ; Styles 



of Compass; Surveys; Geological Survey of New Jersey ; Deductions 



from Indications. Thinks that magnetic iron-ore might be discovered 



in many other localities with the magnetic needle. E. B. N. 



Sorby, H. 0. On the Critical Point in the Condition of Granitic 

 Eocks. Min. Mag. no. 2, pp. 41-45. 



Steenstrup, Von J. Hat man in den interglaciaren Ablagerungen 

 in der Schweiz wirkliche Spuren von Menschen gefunden, oder 

 nur Spnreu von Bibem. Arch. Anthrop. pp. 4. 



Strachey, Lieut.-Gen. R. Address to the Geographical Section of the 

 British Association at Bristol, 1875. Proc. R. Geogr. Soc. vol. xx. 

 pp. 79-89. 



Contains a general review of the geological causes that brought about 

 the present state of the earth's surface. 



Tait, Prof. P. G. Lectures on some Eecent Advances in Physical 

 Science. 8vo. London. 



Lecture vii., pp. 160-184, On Sources and Transference of Energy, 

 treats of the available sources of energy on the earth, and Sir W. 

 Thomson's views respecting the earth's age, under 3 heads : — The earth's 

 internal heat ; Tidal retardation of the earth's rotation ; Temperature 

 of the Sun. The result is that we must bring aU geological history 

 within 10 or, at most, 15 millions of years. W. T. 



Tawney, E. B. On Professor Eenevier's Geological Nomenclature 

 and Table of Sedimentary Eocks. P7'oc. Bristol Nat. Sac. new ser. 

 vol. i. part iii. pp. 351-360. 



Critical notes, and a table comparing LyelVs classification, in 1874, 

 with that of Renevier. 



