1839.] On the preparations of the Indian Hemp, or Gunjah. 851 



" I direct the syce to give a little more of the Bhang than it was 

 usual for a stout man to take for a dose, and it was given for eight or 

 ten days, perhaps longer. 



" The pony is now perfectly well. The disease was induced by 

 compression of the spermatic chord, as a mode of castration. Tetanus 

 is not so fatal in the horse as in man ; of the former I have known 

 several instances of recovery, of the latter, in all my experience I have 

 seen but one case which did not terminate fatally. 



" After the battle of Laswarry several wounded Europeans and 

 Sepoys were received into the Hospitals at Agra with Tetanus, but 

 they all died. A Sepoy who had a large wound on the outside of his 

 right thigh (which had been brushed by a cannon ball, removing the 

 integuments,) was seized with lock-jaw a few days after his arrival. 

 The only medicines he took were pills of opium and calomel, which he 

 took in large quantity, with occasional aperients; — he recovered. The 

 disease came on gradually, and for many days his jaws were so 

 clenched that the small pills could only be administered by an opening 

 between two of his teeth. 



" I ought to have stated that the pony had enemata daily whilst 

 taking the Bhang. 



Signed, " J. SAWERS." 



Art. VII. — Memorandum of Experiments on the Explosion of Gun- 

 powder under Water by the Galvanic Battery ; with a notice of 

 the successful destruction of the wreck of the " Equitable" at Fultah 

 Reach. — By W. B. O'Shaughnessy, M.D. Assistant Surgeon, 



fyc. fyc. 



Having recently undertaken a series of experiments on the applica- 

 tion of the Galvanic Battery to the explosion of gunpowder under 

 water, with reference to the destruction of the wreck of the barque 

 "Equitable," sunk in the channel of the Hooghly at Fultah Reach, 

 I think it desirable to publish a succinct statement of the results to 

 which these experiments have led. 



Description of the Galvanic Battery. 



The galvanic battery which I employed in my experiments is one of 

 my own construction, but on Daniell's constant principle. It consists 



5 R 



