. Glasgow mechanics' magazine; and annals of philosophy . -,J T-i —ri——— Svan Sc 194 d/ii^a^HE GLASGOW j^iyi AN ACCOUNT OF A DESCENT IN THE DIVING-BELL Mr. Andrew Liddell. .v.^af,ij ita . Read before the Glasgow Philosophical Society [Communicated by the Author.] Sd October, 18^5. The diving-bells of last century, performing itsijartfbfiAMs gtfeifeconstructed by Halley and by undertaking. )!h!W Spalding, are now superseded bytn^ improved ones of Mr. Smeatonand of Messrs. Renny:—tbat of^raeaton, as used at Ramsgate;and Messis. Rennys, as at Houthand Port-Patribk harbours*
. Glasgow mechanics' magazine; and annals of philosophy . -,J T-i —ri——— Svan Sc 194 d/ii^a^HE GLASGOW j^iyi AN ACCOUNT OF A DESCENT IN THE DIVING-BELL Mr. Andrew Liddell. .v.^af,ij ita . Read before the Glasgow Philosophical Society [Communicated by the Author.] Sd October, 18^5. The diving-bells of last century, performing itsijartfbfiAMs gtfeifeconstructed by Halley and by undertaking. )!h!W Spalding, are now superseded bytn^ improved ones of Mr. Smeatonand of Messrs. Renny:—tbat of^raeaton, as used at Ramsgate;and Messis. Rennys, as at Houthand Port-Patribk harbours* The]^iying-bell of former times eitherKadi no supply of fresh air, or hadits supply by the uncertain process of transmission by means of barrels; the biell was;suspended-and it ie. to Smeaton and Renny and his assistant hadthat the divers of the present dayare indebted ipr the application of%he air-pump ta supply tne consump-tion of oxygen. Indeed the bell offormer times was but a toy in cbm-parison with the improvea bells of he present day; by means of which he ^iver
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