Chemistry and Physics. . 395 
24 xygen Ratio. 
Silica, i aia t= - - - 24:0 12-79 6 
ame - - - - - - 25°9 13°06 6 
rotoxyd of iron, - ieee 148 8-28 
Maynesiaj i.e. + isi G sR pO t rei 
Water, - - . mAs . 119 10°60 5 
Lime, lithia, manganese, *-  - - trace 
99°3 
Paris, February, 1866. 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY AND PHYSICS. 
1. On the wave-lengths of Fraunhofer’s lines.—Drrscueryer has com- 
municated to the Imperial Academy of Sciences at Vienna the results of 
Kirchhoff. _Wave-length. Kirchhoff. |Wave-length. Kirchhoff. ‘Wave-length. 
93 687°06 1029-4 585°62 1343°5 645-45 
C 694 655°95 1096'1 5 76°09 1851°3 §44-48 
F115 651:37 1103 5 75°15 67 542-82 
7195 649°34 11385 570°88 1889°6 540°32 
183-5 633°55 1155°7 668-03 14105 588-19 
622°92 11744 565°71 14216 536°93 
850 618°94 1200°4 662°35 533°92 
860 616°82 12075 561°36 1463 532-70 
6 616°05 218 560715 1492°5 529°64 
8745 614-06 1231°6 558°52 1506-5 52821 
7 61357 1242-5 55771 1615°5 527438 
885 612:09 1280 552°66 E 1523°5 526-86 
895 610715 1308°7 550°52 1542 §25°41 
959 597-48 1807 550°09 1569°8 523°16 
Dé 1002°8 589°44 13248 547°53 15775 522°52 
Da 1006-8 588°80 1337 54618 15891 521-40 
