308 _ Bibliography. 
Expedition under C. Wilkes, U.S.N., Commander ; forming volume IX. 
of the Reports of the Expedition. 450 pp. 4to.—This volume is the 
result of a vast amount of research by one peculiarly well fitted for 
observation by his habitual accuracy and his experience as a Naturalist. 
r. Pickering, after four years exploration in the Expedition around the 
world, made a journey to Egypt, Persia and Hindoostan to complete 
his observations. The range of the work will be gathered from the 
subjects of the chapters which we here mention. 1. On the Races of 
n; 2. Explanation of the Map, illustrating their distribution ; 3. the 
Races of America; 4. the Malayan Race, including the Polynesian ; 
5. the Australian Race; 6. the Papuan, including the Feejees; 7. the 
Negrillo Race of the East Indies, New Hebrides, &c.; 8. the Telingan 
or Indian Race in Hindoostan, &c.; 9. the Negro Race, Africa; 10. 
the Ethiopian Race, Nubia, &c.; 11. the Hottentot Race; 12. the 
Abyssinian Race; 13. the White or Arabian Race; 14. the Associa- 
tions of the Races and Numerical Proportions; 15. Relations between 
the Races; 16. The Geographical Progress of Knowledge; 17, 18. 
Migrations by sea and by land; 19. Origin of Agriculture ; 20. Zoolog- 
ical deductions; 21 to 24. Introduced Animals and Plants of America— 
of the Islands of the Pacific—of Equatorial Africa—of Southern Arabia; 
5. Antiquities and introduced Plants and Animals of Hindoostan ; 26. 
Introduced Plants and Animals of Egypt, enumerated in chronological 
often mistranslated in our Lexicons, and which in some cases were mis- 
un ood by the translators of the Bible. 
3. Elements of Natural Philosophy, designed as a Text-Book for 
Academies, High Schools and Colleges ; by ALonzo Gray, A.M., Prof. 
Chem. and Nat. Phil. in the Brooklyn Female Academy, and Author of 
Elements of Chemistry, &c. 406 pp. 12mo, with 360 wood-cuts. 
ork. Harper & Brothers. 1850.—The author of the work be- 
fore us has prepared a very convenient and well arranged work on the 
different departments of Natural Philosophy. He has condensed a 
widely extended subject into a small compass well fitted for the stu- 
he work commences with the general properties of matter, 
and the forces which govern it, and then passes to the subject of motion, 
the mechanical powers, hydrodynamics, pneumatics including meteor- 
ology, sound, heat, steam, electricity, galvanism, magnetism and light 
or optics. Galvanism is here in its right place with other branches of 
physics. 
