Hartley. 
Thtl. Trans. 1879. Flat 
No. 2. 
Diagram showing the Absorption of Ultra-Violet Rays by the Fatty Acids and other 
Organic Substances. 
L M 3 !0 II 12 
10 IS 
I 
FATTY ACIDS. 
Isobntyric 
Butyric (1) . 
Butyric (2) . 
Propionic (1) . 
Propionic (2) . 
Propionic (3) . 
Acetic (1) . 
Acetic (2) . 
Formic (1) . 
Formic (2) . 
Formic (3) . 
Oxalic Acid, 10% sol.... 
COMPOUND AM¬ 
MONIAS. 
Tr i ethylamine... 
Diethylamine ... 
Ethylamine, 33% 
Trimethylamine 
Dimethylamine 
Methylamine, 33% ... 
NORMAL 
HYDROCARBONS. 
H exane 
Heptane 
Octane... 
Sodium Suits oj the Fatty Acids in Molecular Proportic 
f Acetate 
1< Propionate 
I Butyrate ... 
f Acetate 
2< Propionate... 
(^Butyrate ... 
23 24- Z5 Zf 
L M 3. 10. 11 12 
n If 22. 24 . 26 ZS. 
Short Spectra of Benzene Derivatives. 
Benzene 
Toluene 
Phenol 
Aniline 
Salicylate of Methyl 
Salicylic Acid, 5% sol. 
L M. 3 10. V 12. 
10 If 
. 23 . 24 . 26 . 26 .: 
Harrison & Sons. Lith.-S! Martins lane 0. 
