490 Proceedings of the Iioyal Society 
buried in Highgate Cemetery, attended to the grave by a few old 
friends and attached pupils, among whom was his friend and 
former companion in travel, Dr Chuckerbutty, who was then in 
England, and two months later was destined to follow his venerated 
master. 
Dr G-rant was never married ; he knew of no surviving relative. 
Three of his brothers, whose deaths he had recorded, were military 
officers. Of these, James, a lieutenant in the German Legion r fell 
at the siege of Badajoz in 1811; Alexander, captain in the 
Madras Engineers, died in the Burmese War in 1825 ; and Francis, 
captain in the Madras army, as already mentioned, died at Edin- 
burgh in 1852. 
By his will Dr Grant bequeathed the whole of his property, 
including his collections and. library, to University College, in the 
service of which he had spent the greater part of his life, and to 
the principles of which he was sincerely attached. 
2. An Illustration of the relative Rates of Diffusion of 
Salts in Solution. By Professor Crum Brown. 
3. On the Oscillation of a System of Bodies with rotating 
Portions. By Sir William Thomson. 
4. Laboratory Notes. By Prof. Tait. 
a. On the Application of Sir W. Thomson’s Dead-Beat Arrange- 
ment to Chemical Balances. 
A considerable amount of time is lost in making an accurate 
weighing on account of the slowness of oscillation of the balance 
when the loads are nearly equal ; and this loss of time is nearly 
proportional to the delicacy or sensitiveness of the balance. Hence 
it becomes a matter of importance to endeavour to bring the balance 
speedily to rest without, if possible, impairing its sensitiveness ; as 
thus much time and labour would be saved in weighing. Several 
methods of applying gaseous friction for this purpose have been 
tried by me of late. By far the most successful consists in sus- 
pending from the beam, either within or beyond the scale-pans, 
