556
M A R Y E N G L E P E N N I N G T O N A N D G E O R G E C. K U S E L .
of Texas, California, and Canadian petroleums, with high boiling-points, is now in progress. h summary of the results obtained in the examination of this petroleum is given in the following table : Sp. gr.
0.8711 0.8788 0.8894 0.5966 0.9020 0.9163 0.9410
[CONTRIBUTION FROM
Index of
1.efraction.
1.4713 I. 4746 I 4 67 2
Molecular refraction Calculated. Found.
62.34 66.94
71.55
62.39 66.70 69.40 73.85 84.70 92.91
14721 76.14 1.4928 85.35 I .4979 92.46 II0.Sj 111.00 I .SI j 2 THE LSBORATORY O F HYGIEXE,r N I V E R S I T Y
OF
PEKXS>'I,VASIA.]
A N EXPERIMENTAL STUDY OF THE GAS-PRODUCING POWER OF BACILLUS COLI COMMUNIS UNDER DJFFERENT CONDITIONS OF ENVIRONMENT. B Y M A R Y EKGLE P E N K I S G T O T A N D G E O R G E C. I
