Proceedings, &c. xvii 



28th July, 1858. 



Ordinary Meeting. 



Dr. Mueller, Vice-President, in the Chair. 



The minutes of the previous meeting, after some discussion, were 

 confirmed as read, and new members were introduced to the Institute. 



The Secretaiy read the names of eight candidates for ordinary 

 membership. 



The following gentlemen were elected ordinary members of the In- 

 stitute, by ballot : — 



Frederick Lloyd, Esq., M.D., Melbourne. 

 Nicholas O'Connor, Esq., Melbourne. 



The Secretary laid upon the table the following contributions, viz. : 

 No. 51, vol. XIII., of the " Quarterly Journal of the Geological Society 

 of London," by the society ; the " Australian Medical Journal," from 

 the commencement till date, by the Medical Society of Victoria ; 

 Monthly Abstract for May, 1858, and, also, Meteorological Table for 

 June, 1858, by the Government of New South Wales. 



In pursuance of notice of motion, the Rev. J. I. Bleasdale moved 

 " That the whole question of sections in the Institute be referred to 

 a committee for consideration and report, both as to its merits and 

 . the most easy method of carrying it into effect. The following gen- 

 tlemen to form the committee :— Hon. Capt. Clarke, R.E., Professors 

 Wilson, Irving, and Hearn, Dr. Macadam, A. B. Orlebar, Esq., M.A., 

 Dr. Eades, Thos. E. Rawlinson, Esq., C.E., and the mover." This 

 was seconded by Dr. MacKenna and carried. 



With the consent of the members, the Rev. Mr. Bleasdale, with- 

 drew the second clause of the motion standing in his name. 



Dr. Ludwig Becker read a few notes on two kinds of Australian 

 Leeches ; and also a paper on a small Australian Bat. The author 

 stated that the bat was, probably, the smallest known mammal. 

 The specimen referred to weighed only 2 dwts. 8 grs. The com- 

 munications were illustrated by drawings and specimens. [Vide 

 " Transactions."] In answer to a question, Dr. Becker stated that 

 he believes the specimen to be that of an adult. 



R. B. Smyth, Esq., F.G.S., then exhibited and verbally described 

 some Hygrometrical Instruments, and particularly the instrument 

 concerning which he had previously read a paper. The following is 

 an abstract of the remarks made : — 



He commenced by showing the method of using Daniell's hygro- 

 meter, and in the course of his remarks pointed out the errors to 

 which we are liable in deducing the temperature of the dew point 

 from it in warm, dry climates. He next exhibited the dry and wet 

 bulb thermometers, and explained their action, giving the formula of 

 Dr. Apjohn for computing the dew point, and also the Greenwich 

 factors. Apjohn's formula and the Greenwich factors, he stated, 

 were not applicable to a warm, dry atmosphere ; and quoting from 



b 



