734 
Proceedings of the Royal Society 
After 32 minutes, current = 2 ‘2 Amperes. 
EMF = 07 Volt. 
After 52 minutes, current = 1*3 Amperes. 
Work expended in circuit = 3560 ft. lbs. 
2nd cell. Surface 7 sq. in. 
After first minute, current = 0 ’4 Amperes. 
After 30 minutes, current = 2 ’5 Amperes. 
Work expended in circuit = 2880 ft. lbs. 
Monday , 5th June 1882. 
The Eight Hon. LOED MONCEEIFF, President, 
in the Chair. 
The President read Obituary Notices of Mr. David Smith, 
Dr. William Lauder Lindsay, and Professor Benjamin Peirce, 
deceased Fellows of the Society. 
OBITUAEY NOTICES. 
David Smith. By Mr. David Maclagan. 
Mr. David Smith was born 13th January 1803, and died 16th 
December 1880, in his 78th year. He was educated at the High 
School and University of Edinburgh, his native city. 
Having resolved to adopt law as his profession, he joined the 
body of Writers to Her Majesty’s Signet in 1826, and at a com- 
paratively early period of his life acquired an outstanding position 
as a man of business. Large and important interests were com- 
mitted to the charge of his partner, Mr. James Kinnear, and himself, 
involving increasingly from year to year much laborious care and 
watchfulness. 
In the year 1858 he was offered, as affording by its more defined 
and systematic duties, some measure of relief from an overtasked 
life, the vacant appointment of principal officer of the North 
British Insurance Company; his wide general experience having 
included a practical acquaintance with the principles and manage- 
