Bibliography. 455 



Bartram 8; Elic de Beaumont 40; Th. Bell 34; E. T. Bennett 60; 

 Berthold 32; G. Bischoff 19; T. L. W, Bischoff 24; Blainville 150; 

 Blumenbach 41 j Boie 39 ; Bonaparte 49 ; Boue 67 ; Brandt 65 j Brehm 

 43; Brocchi 30; Ad. Brongniart 20; Alex. Brongniart 50; Bronn 

 38; Buch 78 : Buckland 61,^c. 



A work of this kind must contain examples of various languages 

 (the titles being generally given in the original), and the editor has suc- 

 ceeded in giving the text with remarkable accuracy. In the extensive 

 list of Blainville, No. 127, is a repetition of No. 6. A curious error 

 appears under the name of W. E. Bach, which should be Leach; this 

 error has doubtless arisen from writing or copying the name from Ger- 







niau manuscript, in which one of these names might be readily mis- 

 taken for the other. 



This work will exercise a wholesome influence upon science, as it will 

 lead authors to a knowledge of the great amount of materials which 

 has accumulated during several centuries. S. S. H. 



5. Observations at the Magnetic and Meteorological Observatory , at 

 the Girard College, Philadelphia, made under the direction of A. D. 

 Bache, LL.D., and with funds supplied by the members of the Ameri- 

 can Philosophical Society, and by the Topographical Bureau of the 

 United States, 1840 to 1845. Printed by order of the Senate of the 

 U. S., and under the direction of the Topographical Bureau. Wash- 

 ington, 1847, (issued in 1849,) 8vo, pp. xlix, and 3212, bound in 3 vol- 

 umes, with Atlas of 210 plates. 



The observations recorded and digested in these volumes, were un- 

 dertaken in compliance with the plan proposed by the British Associa- 

 tion for the Advancement of Science. " A great union was thus form- 

 ed, which finally embraced more than thirty observatories, in the four 

 quarters of the globe, carrying on simultaneous observations upon the 

 same plan and with similar instruments." 



It is gratifying that our country has made so valuable a contribution 

 to the progress of this great work, and that the government has with 

 an enlightened liberality assumed the expense of communicating to the 



■ scientific world, in a convenient and accessible form, this important 



j mass of materials. 



The volumes are introduced by a preface from Dr. Bache, in which 

 he gives a description of the Observatory, the names of the observers 

 and computers, the instruments employed, the modes of observation, 

 and other interesting notices. 



We have no room for an extended account of the contents of these 

 volumes, nor is it here necessary, as the work will be sought for and 

 valued by all persons engaged in investigations of the subjects to which 



. they relate. We can not refrain however, from expressing the grati- 



tude of the scientific men of this and other countries to Dr. Bache, and 

 his corps of associates, and also to the Senate of the United States, 



I for this important contribution to the stock of knowledge. 



! 6, An Introduction to Practical Chemistry including Analysis ; by 



John E. Bowman, Demonstrator of Chemistry in King's College, Lon- 

 don. Philad. : Lea & Blanchard. 1849. 12mo, pp. 303. With numer- 

 ous wood cuts. — This work is designed for beginners in chemistry, 

 and is a well arranged guide to the common processes of the labora- 



