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The article focuses on an anaerobic method of growing anaerobic organisms. It states that the method is a modification of A. W. Sellards' technique where anaerobic conditions were secured with phosphorus combustion. It talks about methods of safely storing phosphorus using a mason jar and water to prevent it from combusting. It comments on the need for the combustion chamber's design prevent the reignition of the phosphorus.

The article presents a study which examined the salivary inhibition of dental caries. The author feels that salivary inhibition of dental caries is the result of the growth of normal salivary streptococci within the saliva, noting that other members of the basal oral flora do not cause similar inhibition.

The article reports on research that examined diet as a governing factor in the distribution of streptococcal and degenerative diseases. The authors note that as one approaches the equator the prevalence of degenerative diseases is reduced. Additionally, the arctic regions are completely void of these diseases. They discuss how primitive diets that are supplemented with flour and sugar result in increases in the incidence of dental caries and other diseases.