pe PORT, 
IV. Observations on the changes of color in Birds and Quadrupeds. By John 
Bachman, D. D.. 197—239. 
V. Determination of the Longitude of I stations near the Northern Bound- 
ary of Ohio, from Transits of the Moon, and Moon-culminating Stars, observed in 
1835, by Capt. Andrew Talcott. By Sears C. Walker. 241—266. 
VE. On the magnetic Dip at several places in the State of Ohio, and on the rela- 
tive Horizontal Magnetic Intensities of Cincinnati and London. By Prof. John 
ke. In aletter to John Vaughan. 267—273. 
VII. New formule relative to Comets. By E. Nulty. 275—295. 
VIII. Account ofa Tornado, which, towards the end of August, 1838, passed 
over the suburbs of the city of Providence, in the State of Rhode Island, and after- © 
wards over a part of the village of S t. Also an extract ofa letter on the same 
subject from Zachariah Allen, of the city of Providence. Communicated by Rob- 
ert Hare. 297—301. 
IX. Contributions to Electricity and Magnetism, No. III, On Electro-Dynamic 
Induction, By Joseph Henry. 303—337. 
6. Notice of the “ Journal of the Statistical Society of London.” 8vo. 
18s. per year.—This society was established at London in the spring of 
: 1834, and has prosecuted with great vigor the objects for which it was 
2 instituted. The journal of the society, (the first number of which ap- 
, Peared in May 1838) is published monthly, and contains an account of 
be the proceedings of the Statistical Society of London, and of other socie- 
} ties, communications on statistical subjects; queries and tabular forms for 
Prosecuting original inquiries; copies or abstracts of parliamentary re- 
ee Ports and papers relating to statistics; reviews and lists of new statistical 
t Works, &c. 'The work is in our judgment, one of very great value : as 
; : 4 specimen of the papers contained in it, we may mention the following: 
+ Account of the changes and present state of the population of New Zeal- 
a and; Statistics of the copper mines of Cornwall, England; Statistical 
 Mustrations of the principal Universities of Great Britain and Treland : 
Statistical table of crime in Ireland; Moral Statistics of three parishes in 
t city of Westminster; Account of Algeria, or the French provinces in 
Africa; Statistics of the city of New York. It is not necessary to say 
anything here of the importance of authentic statistics to all classes of 
Philosophic inquirers and men of business. 6 these the work in ques- 
tion cannot fail to be highly acceptable and useful. We hope it may gain 
* general circulation throughout our country. 
- 7. Progress of the U. States Exploring Expedition —The exploring 
_- “adron, of which we have given accounts in Vols. 35 and 36, arrived 
at Orange Harbor, Terra del Fuego, on the 17th of February, 1839, in 
forty days from Rio Janeiro. Commt. Wilkes then transferred himself 
from the Vincennes to the brig Porpoise, in which, attended by the 
Schooner Sea Gull, he sailed from Orange Harbor on the 25th February, 
1839, with the intention of penetrating as far south as circumstances 
