41S 
Sdenttflc In telUgaicf. 
netical observations will, we understand, be particularly va- 
luable. 
4^. Heights of different Points of the Chain q/^/wm.—TIie 
following are the results obtained by M. Roger from a geome- 
trical survey of the Jura. The altitudes are reckoned from the 
Lake of Geneva, which is 372.93 metres, or 1151.1 Paris feet 
above the sea. 
Metres. 
Paris Feei. 
Toiri, - - 
1344.8 
41389 
Grand Colombier, 
1315.25 
40489 
Montendre, 
1308.00 
40266 
Bole, 
1305.00 
40174 
Cret de la Gutte, 
1247.61 
38407 
Chasseron, - _ _ 
1236.23 
38057 
Suchet, - - - 
1215.94 
37432 
Bent de Vaulion, 
1111.27 
34210 
Col du Marchairii, 
1088.09 
33368 
Passage des Rousses, 
868.25 
26728 
Lac de Joux (mean state of the water) 
, 633.05 
19488 
Hill of the Tower of Gourze, 
543.84 
16742 
Passage of Chalet Gobet, 
492.00 
15146 
Lausanne, House of Baron de Falck- > 
ensheld, on the level of the street, j 
124.00 
33817 
Bihliotheque Unwerselle, Fev. 1820, p. 94. 
43. Temperature of the Lakes cff Thun and Zug. — Mr de la 
Beche has obtained the following results in measuring the tem- 
perature of the lakes of Thun and Zug. 
Lake of Thun, surface 
Fahr. 
60^ Lake of Zug, surface, 
Fahr. 
58° 
15 fathoms, 
42 Zug, 
15 fathoms, 
42 
50 
4'U 
25 
41 
105 
38 
41 
Bibl, Universelle^ Juin 1820, p. 144. 
44. Singular discovery respecting Copper-plate Printing, 
— -M. Gonord is said to have excited the surprise of the public, 
by announcing that he can take impressions from an engraved 
copperplate on any scale, either larger or smaller than the plate. 
