A preliminary report on the composition of the coals of Kansas. By E. H. S.
BAILEY
Fermentation without combined nitrogen. By ALFRED SPRINGER
Examination of methods proposed for rendering the lighter petroleum oils in-
explosive. By CHAS. E. MUNROE
The chemistry of the roller milling process. By CLIFFORD RICHARDSON
Analysis of a mural efflorescence. By CHAS. E. MUNROE
A study of the phenomenon of deliquescence. By CHAS. E. MUNROE (Dia-
gram)