CONTENTS 
OF THE NATURAL HISTORY PART (PT. II.) OF THE 
JOURNAL OF THE ASIATIC SOCIETY OF BENGAL FOR 1888. 
No. 1, (issued June 8tli, 1888). Notes on Indian Rhynchota ; 
Heteroptera, No. 3.— By E. T. Atkinson, B. A. — A General Theorem 
on the Differential Equation of Trajectories. — By Asutosh Mukhopadhyay 
M. A., E. R. A. S., E. R. S. E. On Poisson’s Integral. — By Asutosh 
Mukhopadhyay, M. A., E. R. A. S., F. R. S. E. (With a Woodcut.) 
On the Nature of the Toxic Principle of the Aroidese. — By A. Pedler, 
E. C. S. (Lond. and Berl.), Professor of Chemistry, Presidency College, 
and C. J. H. Warden, E. 0. S. (Lond. and Berl.), Professor of Chemistry, 
Medical College, Calcutta. 
No. 2, (issued July 19th, 1888). Notes on Indian Rhynchota; 
Heteroptera, No. 5 .—By E. T. Atkinson, B. A. On recent Tornadoes 
in Bengal with special reference to the Tornado at Dacca on April 7th, 
1888. In two Parts. Part I. A Description of the Meteorological Condi- 
tions in Bengal which accompanied the Formation of the Dacca Tornado. 
By Alex. Pedler, Oflig. Meteorological Beporter to the Government of 
Bengal. Part II. A full Description of the actual Phenomena of the 
Dacca Tornado. — By A. Crombie, M. D., Civil Surgeon of Dacca. (With 
Plates XXIV.— XXIX.) 
No. 3, (issued October 10th, 1888). Natural History Notes from 
H. M.’s Indian Marine Survey Steamer ‘ Investigator,’ Commander 
Alfred Carpenter, R. N., D. S. 0., Commanding. No. 9. Further 
Notes on the Amphipoda of Indian Waters.— By G. M. Giles, M. B., 
E. R. C. S., Surgeon-Naturalist to the Narine Survey. (With Plales 
VI— XII.) On Eupetaurus, a new form of Flying Squirrel from 
Kashmir . — By Oldfield Thomas, British Museum ( Natural History) 
Communicated by The Natural History Secretary. (With Plates 
XXII. and XXIII.) 
No. 4, (issued March 23rd, 1889.) On new or little-known Butterflies 
from the Indian Eegion. — By Lionel de Nice'ville, F. E. S., 0. M. Z. S. 
(With Pis. XIII and XIV.) A List of the. Ferns of Simla in the N. W. 
Himalaya between Levels of 4,500 and 10,500 feet. — By H. F. Blanford 
F. R. S. (With Pis. XVI. — XXL) On the Differential Equation of all 
Parabolas.— By Asutosh Mukhopadhyay, M. A., P. R. A. S., F. R. S. E. 
New or little-known India Rhynchota. — By E. T. Atkinson, B. A. (With 
PL XV.) The Butterflies of the Nilgiri District, South India. — By G. F 
