522 List of Books, Sc. 
Donors. 
William Scoresby, Jun. Esq. Description of a Magnet- 
F.R.S, E. §e. imeter, &c. Edinburgh, 1821. 
Ato. 
Observations on the Errors 
jn the Sea-Rates of Chrono- 
meters, arising from the Mag- 
netism of their Balances, &c. 
Edinburgh. 1822. 4to. 
——— enn 
J. H. Vivian, Esq. Proceedings of the Sub- 
scribers to the Fund for ob- 
viating the inconvenience 
arising from the Smoke pro- 
duced by Smelting Copper 
Ore, &c. Swansea. 1823- 
Syo. 
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