488 New Scientific Books. [Junz, 
XI. Experiments on Pendulum Vibrations at different Latitudes. 
The long talked of experiments and observations in reference to 
the figure of the earth, and the lengths and vibrations of pendulums 
in different latitudes, are now in progress. Colonel Mudge, the 
conductor of the Trigonometrical Survey, and M. Biot, of the 
French Institute of the Paris Academy, have gone together to 
Edinburgh. M. Biot is now making the pendulum experiments at 
Edinburgh ; while Colonel Mudge and Captain Colby are measuring 
a base of verification near Aberdeen. The operations at Edinburgh 
and Aberdeen are expected to terminate about the middle of June ; 
when the party will be joined at Aberdeen by Dr. Gregory, of the 
Royal Military Academy; and the whole will proceed to the 
Orkneys, as well for the purpose of making the requisite astrono- 
mical observations, as for that of conducting the pendulum experi- 
ments, both with M. Biot’s apparatus, and with the astronomical 
clock taken out by Colonel Mudge. ' 
XII. Mr. John Stevenson, Oculist, Se. 
In: consideration of the personal benefits received from the pro- 
fessional talents of John Stevenson, Esq. of Great Russel-street, 
Bloomsbury-square, his Royal Highness the Duke of York has 
been graciously pleased to appoint him his Surgeon-Oculist and 
Aurist. 
ARTICLE XII. 
Scientific Books in hand, or in the Press. 
Dr. W. Philip has in the press, nearly ready for publication, an 
Experimental Inquiry into the Laws of the Vital Functions, with Ob- 
servations on the Nature and Treatment of Internal Diseases, in part 
republished, by permission of the President of the Royal Society, 
from the Philosophical Transactions, with the Report of the National 
Institute of France on the Experiments of M. le Gallois, and Obser- 
vations on that Report. 
Mr. George Ogg, of Plymouth, has just published a Lecture 
which was read to the Plymouth Institution on the Prevention and 
Cure of Dry Rot in Ships of War. 
Dr. Spurzheim has just published, in 8vo. an Inquiry into the 
Diseased Manifestations of the Mind, or Insanity, illustrated with 
four Plates. He is also preparing a new work, being a Series of 
Essays on the Forms of Heads, in relation to the different Characters, 
Individual and National, and on the Principles of Expression, 
Mr. Nicholas is about to publish the Journal of a Voyage to New 
Zealand, made in company with the Rev. Samuel Marsden. 
Dr. Duncan, jun. of Edinburgh, has nearly completed the New 
Edition of the Edinburgh Practice of Physic. 
The Second Volume of Kirby’s and Spence’s Introduction to Ento- 
mology is nearly ready for publication, 
