† Pneumococcus Type I, No. 1231 - The Biotic Associations of Cockroaches - 63 - Louis M. Roth; Edwin R. Willis

Lactobacillus fermenti Beijerinck * Streptococcus faecalis Andrewes and Horder

† Pneumococcus Type I, No. 1231

Experimental vectors.—Blattella germanica, Germany (Vollbrechtshausen, 1953).