6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 85 



the identification indicated, but the approximate intensities are con- 

 sistent with such an interpretation. Of the entire 15 bands observed, 

 only one has not been identified. This is almost immeasurably weak, 

 and occurs in a position slightly displaced from the frequency where 

 we should expect 3i'i + 8. This excellent agreement throughout leaves 

 little doubt as to the correctness of the choice of fundamentals pro- 

 posed by Badger and Binder. 



Table i. — HCN Bands in Liquid 



Abs. 



coeflf. \ J* Ay 



k A cm.-' cm.-i 



.014 8000 12500 ± 30 



3000 



3090 



2040 

 2077 



I9IO 



719 



708 



2061 

 713 



740 



.17 10527 9500 ± 10 



.64 15600 6410 ± 10 



3290 



.004 9500 10527 ± 20 



2l'i 4- J'z 47. .13 II787 8487 ±10 



2^1 6410 ± 10 



4i'2 12. .024 12540 7974 ± 10 



3i'2 (50) .. 16490 6064 ± 10 



(2..) 



(pi) vapor 2090 



2i'i + 25 14. .029 12760 7837 ± 10 



2pi + S 88. .42 14050 7ii8±io 



Zvi 6410 ± 10 



(5) vapor 710 



3"! + "2 3-7 -008 8650 ii56i±25 



3"! 9500 ± 10 



10. .017 11380 8787 ± 10 



42. .11 14690 6804 ± 10 



6064 ± 10 



(20) .. 17900 5587^15 



78. .30 19000 5263 ± 15 



