[ aI | 
= 
WAVE NUMBER (CM7!) < 
4000 3000 2000 1500 1000 900 800 700 > 
PEMBERTON N. J. ¥ 
i ne 
MONTANA | 
HARRISONVILLE, NJ. 
l 1 | _| 1 J i i J if 1 
4 > 6 7 8 - 10 1] 12 13 14 15 
WAVELENGTH — (MICRONS) 
Infrared spectra of Cretaceous amber from Pemberton, N.J. and Harrisonville, N.J. 
and unknown age from Montana Type I. 
