[ FLL | 
WAVE NUMBER (CM~') 
4000 3000 2000 1500 1000 990 
BAJA CALIFORNIA, 
MEXICO 
S 
= 
= 
= 
i 1 J J ! I 
aR 
| III 
3 4 5 6 7 8 9 10 1] 12 13 
WAVELENGTH (MICRONS) 
Infrared spectra of Cretaceous amber from Baja, California, Mexico, Types I, II and III. 
TLW Td 
TIXX 
