A course of lectures in natural philosophy. :
By the late Richard Helsham, ... Published by Bryan Robinson, M.D.
|Main Creator:||Helsham, Richard, 1682?-1738.|
|Published / Created:||
Dublin : printed by William Sleater and William M'Kenzie, 1793.
|Edition:||The sixth edition.|
Physical description: viii,,404 p.,plates ; 8vo