Publisher:British Science Guild, London
Copyright:1921
Author: Forbes, Duncan
Publisher:Wm. H. Allen, London
Copyright:1848
Author: Mitchell, S. Augustus
Publisher:Thomas Cowperthwait, Philadelphia
Copyright:1848
Author: Mitchell, S. Augustus
Publisher:Thomas, Cowperthwait, Philadelphia
Copyright:1848
Author: Marshall, John
Publisher:Superintendent Government Printing, Calcutta
Copyright:1921
Author: Roberts, P E
Publisher:The Clarendon Press, Oxford
Copyright:1921
Author: Vidyabhusana, Satis Chandra
Publisher:Calcutta University, Calcutta
Copyright:1921
Author: Erdmann, Johann Eduard
Publisher:George Allen and Unwin Ltd., London
Copyright:1921
Author: Barua, Benimadhab
Publisher:University of Calcutta,
Copyright:1921
Author: Brett, George Sidney
Publisher:George Allen and Unwin Ltd, London
Copyright:1921