Royal and Asironomical Societies. 455 
able Mipianp Frora. We cannot withhold our acknowledge- 
ment of the faithful industry and botanical accuracy displayed 
by its respectable Author. ‘This third volume, Price 12. 10s., is 
embellished with thirty coloured Engravings. 
Preparing for Publication. 
A History of a severe Case of Neuralgia, commonly called Tic 
Douloureux, occupying the Nerves of the Right Thigh, Leg and 
Foot, successfully treated ; with some Observations on that Com- 
plaint, and on its Causes as they vary in different Individuals. 
By G.D. Yeats, M.D. F.R.S. Fellow of the Royal College of 
Physicians, &c. &c. 
A Treatise on the Morbid Respiration of Domestic Animals, 
illustrative of the Diseases of the Organs of Respiration in Horses, 
Cows, Sheep, and Dogs, with the most approved Methods of 
Treatment, including a variety of Cases and Dissections. By 
Edward Causer, Surgeon, late Veterinary Surgeon to His Ma- 
Jesty’s 4th Regiment of Dragoons. 
XCIV. Proceedings of Learned Societies. 
ROYAL SOCIETY. 
April 25.—Orx the Mechanism of the Spine, by Mr. Earle. 
Observations on the Eclipse of August 1821, by Mr. Dawes. 
May 2.,—On the Nerves which associate the Muscles of the 
Chest in the Actions of Breathing, Speaking, and Expression, 
by Charles Bell, Esq. 
_ A short Account of some Appearances in the Moon on the 
24th of April, by Mr. Lawson. 
May 9.—Experiments and Observations on the Newry Pitch- 
stone, and on the artificial Formation of Pumice, by the Right 
Hon. J. Knox. 
May 16.—On the Changes which the Egg undergoes during 
Incubation, by Sir E. Home, Bart. 
May 23.—On the Mathematical Laws of Electro-magnetism, 
by P. Barlow, Esq. ; 
On the Heights of Places in the Trigonometrical Survey, by 
B. Bevan, Esq. 
ASTRONOMICAL SOCIETY OF LONDON. 
Friday, June 14.—T'wo papers were read from Mr. Gompertz : 
one on a new methed of investigating the formule for ex- 
pressing the Aberration of Light: the other being a continuation 
of a former paper on the means of correcting the errors of astro- 
nomical instruments by certain mathematical expressions. 
A paper 
