270 REPORTS ON THE STATE OF SCIENCE. 
RHODIUM—continued. 
Are Spectrum | Spark Spectrum Redaction to 
Vacuum 
Wave-length Inten-| Wave- | Inten- Oscillation 
yee ees Dot | sity length sity |, |Frequency 
Rowland Exner | and |—————/ and 1 in Vacuo 
Kayser | an | and Cha- |Exner and} Cha- | a+ | ~— 
| Tatnall | Haschek racter | Haschek | racter r 
| 2250°1 1 0°68 | 13°5 | 44429 4 
49-7 1 sol age 37° 
| | 48-7 In ” ” 57° 
47°8 In son Sh. Say 74: 
47:0 1 +S $5 90: 
41:0 1 i * 44609- 
40°8 1 9 “p 13: 
40:2 1 OF a 25° 
392 | 2 > ee 45: 
384 | 1 os 13°6 61- 
37°7 2 + 5 75° 
37:2 1 a a 85: | 
36°7 1 59 on 95> | 
36°5 1 Spa eta 99- 
| 36:0 1 1 . 44709: 
| 35°3 1 + 5 23° 
30°7 2 “r or 44815- 
29°2 In 0°67 Ss 46: 
ojos Pee) ad +“ “6 64° 
26-7 2 +s 13°7 96° 
26:0 1 + “1 44910: 
25°1 2 | 5 28° 
22°0 b 99 5 91- 
20:99 | 1 no $9 45013- 
20°4 1 * 7 23° 
19-4 1 re 44- 
| 06°5 1 “5 13°8 | 45307: 
2199:0 1 i 13°9 | 45461- 
96-2 1 oF By 45519: 
94:2 1 p ss 61: 
92°8 | 1 7 oF 90- 
O1-0.- 4) 1 » | 14:0 | 45627: 
| 86:0 1 5 z 45732>- 
| | S2ZOF iil) al) ale, eee at meas 45816 
| | 67°3 2 0°66 | 14:2 | 46126: 
Nore.—Lines marked @ are resolved into fowr constituents in a very strong mag- 
netic field, those marked b into triplets, those marked ¢ into doublets (Purvis, Proc. 
Cambridge Phil. Soc., xiii. p. 322). 
Dynamic Isomerism.—Report of the Comnvittee, consisting of Professor 
H. E. Armstrone (Chairman), Dr. T. M. Lowry (Secretary), Pro- 
fessor SypNey Younc, Dr. J. J. Dospre, Dr. A. LaPwortu, 
Dr. M. O. Forster, and Dr. C. H. DescH. (Drawn up by the 
Secretary.) 
ATTENTION has been directed during the past year mainly to a study 
of the influence of impurities on the velocity of mutarotation of nitro- 
camphor. In an earlier series of experiments on glucose! it was found 
that the mutarotation in aqueous solutions could not be retarded by the 
1 Lowry, Zrans. Chem. Soc., 1903, 88, 1314-1323. 
