182G.] Scientific Notices — Miscellaneous. 149 



economy in its employment. The results are very satisfactory. 

 The glasses made of this salt were of a very fine quality. The 

 following is the composition : dry sulphate of soda, 100 parts ; 

 slaked lime, 12; powdered charcoal, 19; sand, 225; broken 

 glass, from 50 to 200. These proportions give a rich coloured 

 glass, which may be employed with advantage in glass houses, 

 where a fine quaUty is sought after. The following is the second 

 way of operating with sulphate of soda ; the proportions may 

 be as follow: dry sulphate of soda, 100 parts; slaked lime, 

 266 ; sand, 500 ; broken glass, from 50 to 200. According to 

 this process, it is obviously easy to operate in a regular manner, 

 and to avoid expensive trials in the manufacture. Leguay, 

 Annates de l' Industrie Nationale. — (Edin. Phil. Jour.) 



4. Inspiration of Hydrogen. 



Signor Cardone, after having emptied his lungs as much as 

 possible of common air, inspired 30 cubical inches of hydrogen 

 at two inspirations. An oppressive difficulty of breathing, and 

 a painful constriction at the superior orifice of the stomach 

 came on, followed by abundant perspiration, tremor of the body, 

 heat, nausea, and violent headache. Vision was indistinct, and 

 a deep murmur confused his hearing. 



These symptoms shortly disappeared, except the heat, which 

 increased so as to excite considerable apprehension, but soon 

 gave way to the use of cold drinks. He was speedily reco- 

 vered. Giornale di Fisica. — (Dublin Phil. Jour.) 



Miscellaneous. 



5. Intelligence from the Land Arctic ExpeditioUf under Captain 



Franklin and Dr. Richardson, 



The following contains an interesting statement of the pro- 

 gress of the Land Arctic Expedition under Captain Franklin 

 and Dr. Richardson, up to September last, which is the latest 

 information from the travellers : — 



" We have travelled incessantly since we left lake Superior. 

 We overtook our boats, which, with their crews, left England in 

 June, 1824, eight months before us, about half way to this place, 

 or four or five days march to the southward of Mathye Portage. 

 We embarked in them at Chepewyn on the 20th July, and 

 arrived in Mackenzie's River on the 31st. At Fort Normans 

 Dr. Richardson separated from the rest of the party. Captain 

 Franklin and Mr. Kendal went down the river to the sea in one 

 boat, whilst Dr. Richardson brought the others and their 

 cargoes up Bear Lake River, which falls into the Mackenzie a 

 few miles below Fort Normans. Franklin made a prosperous 

 voyage, and on the 16th of August, exactly six months from 

 the day he sailed from Liverpool, had an extensive view from the 

 summit of Garry's Island of the open sea, clear of ice, with many 

 black whales; belugas, and seals, playing about. The water at 



