ArPPARATUS FOR RAISING BODIES UNDER WATER. 287 



I know no authority for the as-ertion, that ox'igen con- 

 tains carbon. It vviis no doubt founded on some mihtake. 



With regard to the appearance of hidrogen in Mr. Davy's 

 experiment, I can only refer my correspondent to what has 

 been said by that gentleman in his ditl'erent papers on the 

 decomposition of the alkalis, particularly in vol. XX, p. 

 323 } XX il, p. Cl & foil.; XXIV, p. 105. 



VIII. 



Methods of raising the Bodies of Persons who have sunfc 

 under Water, or of assmting Persons in Danger in Water, 

 By John Miller, Esq., of Bedford*, 



SIR, 



ITNESSING, as many others did, a boy losing his Boy drowned, 

 life in the river in this place, for want of an expeditious 

 means of finding and recovering his body when sunk, I 

 Wrote to and waited on Dr. Havves, requesting him to pro* 

 cure for me whatever were the proper and most approved 

 •machines for that purpose. He purchased for me two sets Apparatus for 



of the Royal Humane Society's Apparatus for Reauimation ; ''^^o^'-''^'"? 



•' . ^ r r ^ drowned bu- 



two of Daniel's Life Preservers; one of the Society's Rope dies. 

 Drags; and one of Dr. Cogan's Pole Drags; pointing out 

 this last as the most approved and most efficacious machine 

 then in use: and he gave me a sketch of a bar drag, armed 

 with tenter hooks, and weighted with a bar of iron, to which 

 the rope for drawing it was to be fastened. 



As soon as I had received it, I went with a medical gen- Inconvenience 



tlenian, who had been eye witness to the fatal catastrophe, ^'^^s" •"g*^^* 

 . . * . . t^ogan 3 drag, 



and who assisted in searching for and taking out the boy, 



(consequently knew the precise spot wherein he fell, And 



•where he was found, which was within three feet of where 



he fell) to try the efficacy of Dr. Cogan's drag. The boy 



fell from oft' the bridge while fishing, and so far distant 



• Trans of the Society of Art^, vol, XXVII, p. 125. The gold me- 

 dal was voted to Mr. Miller for these Inventions; 



from 



