70 Proceedings of Philosophical Societies. [Jan. 



riments on the effects of Schehallien on the Plumb-line. This 

 labour, comprehending the most complicated arithmetical pro- 

 cesses, the President observed, would for ever associate his name 

 with one of the grandest and most important physical problems 

 solved in the last century, and transmit it with honour to 

 posterity. 



To speak of Dr. Edward .Tenner as a man of science of our 

 own particular school, the President observed, would be saying 

 little, for he had a higher claim to our deep regret and profound 

 admiration as a benefactor to mankind in general. — After ad- 

 verting to the invention and effects of vaccination, Sir Hum- 

 phry Davy remarked, that the originality of Dr. Jenner's mind 

 and the accuracy of his observation are shown in his first 

 communication to the Society, on the Natural History of the 

 Cuckoo; and in the pursuit of his great object, he met with 

 obstacles which required no ordinary degree of perseverance, 

 and of confidence in his own powers to overcome ; the fairway 

 of judging of the merits of an inventor, said Sir Humphry, is 

 by the operation of his discovery on civilized and social life ; — 

 and in this respect Dr. Jenner stands almost alone. 



Of Dr. Baillie, the President observed, that whether consi- 

 dered as a physician or as a man, his talents and his virtues 

 were alike distinguished, — his works show the accuracy and 

 coolness of his judgment; his minuteness in observation ; and 

 his acuteness in referring effects to their true causes, amidst 

 the complicated phenomena offered by diseased organs. No 

 man was ever more free from any taint of vanity or affectation ; 

 he encouraged and admired every kind of talent, and rejoiced 

 in the success of his contemporaries ; and he maintained, even 

 at court, the simplicity and dignity of his character. 



Col. Win. Lambton, the President observed, was a veteran in 

 the army of India : two papers of his are published in the Trans- 

 actions of the Society, on the Admeasurement of an Arc of the 

 Meridian in Hindostan — a work of great labour, displaying 

 minute accuracy and extraordinary perseverance, and carried on in 

 a climate unfavourable to bodily exertion or intellectual pursuit. 

 This arc extends in amplitude very nearly ten degrees ; and 

 Col. Lambton had the honour of having laid down the largest 

 Single arc ever measured upon the surface of the globe. 



The President, whennoticing Archdeacon Wollaston, observed 

 that the little which ho had contributed to the Society's Trans- 

 actions occasioned regret that he had not been a more frequent 

 contributor. — His papers, said Sir Humphry, on the Measure- 

 ment of Heights, and on the Alteration of the Boiling Tempe- 

 rature, offer a valuable resource in ascertaining the altitudes of 

 mountains, and are remarkable for accuracy of method and 

 distinctness of detail. 



After making respectful mention of Dr. Cartwright and Mr. 

 Jordan, the President proceeded to make some observations on 



