Miscellanies. 189 



IV. Observations on the changes of color in Birds and (Quadrupeds. By John 

 Bachman, D. D. 197—239. 



V. Determination of the Longitude of several 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. 24] —266. 



VI. 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 

 Locke. In a letter to John Vaughan. 267 — 273. 



VII. New formulae relative to Comets. By E. Nulty. 275—295. 



VIII. Account of a 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 pai-t of the village of Somerset. Also an extract of a 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." Svo. 

 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 

 instituted. The journal of the society, (the first number of which ap- 

 peared in May 1838) is published monthly, and contains an account of 

 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- 

 ports and papers relating to statistics ; reviews and lists of new statistical 

 works, &c. The work is in our judgment, one of very great value : as 

 a 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- 

 and ; Statistics of the copper mines of Cornwall, England ; Statistical 

 Illustrations of the principal Universities of Great Britain and Ireland ; 

 Statistical table of crime in Ireland ; Moral Statistics of three parishes in 

 the 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. To these the work in ques- 

 tion cannot fail to be highly acceptable and useful. We hope it may gain 

 a general circulation throughout our country. 



7. Progress of the U. States Exploring Expedition. — The exploring 

 squadron, 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 



