xiv TABLE OF CONTENTS, 



ARTICLE VII. Discission of the Magnetic and Meteorological Observations made at 



THE tilBARD COLLEGE OBSERVATORY, PHILADELPHIA, IN IS 10, 1841, 1842, 



1843, 1844, and 1845. Second Section, comprising Parts IV, V, VI. 

 Horizontal Force. Investigation of the Ten or Eleven Year Period 

 and of the disturbances of the horizontal component of the mag- 

 NETIC Force; Investigation of the Solar-Diurnal Variation and of 

 the Annual Inequality of the Horizontal Force; and of the Lunar 

 Effect on the Same. By A. D. BAcnE, LL. T>., F. H. S., Mem. Corr. 

 Aead. Sc. Paris; Superintendent IT. S. Coast Survey. Dp. 78. (Published 

 November, 1862.) 



ARTICLE VIII. Records and Results of a Magnetic Survey of Pennsylvania and 



TARTS OF ADJACENT STATES IN 1840 AND 1841, WITH SOME ADDITIONAL 



Records and Results of 1834, 1835, 1843, and 18G2, and a map. By 

 A. D. Bache, LL. D., F. R. S., Mem. Corr. Acad. Sc. Paris; Prest. Nat. 

 Acad. Sciences ; Superintendent IT. S. Coast Survey. Pp. 88 and one map. 

 (Published October, 1863.) 



ARTICLE IX. Researches uton the Anatomy and Physiology of Respiration in the 

 Chelonia. By S. Weir Mitchell, M.D., and George R. Morehouse, 

 M. D. Pp. 50. (Published April, 1863.) 



