1. The proventriculus in the Dytiscidae as a Taxonomic Character;Balfour-Browne;Stylops,1934
2. The Wing-Venation of the Adephaga (Coleoptera) with special reference to the Hydradephaga and some homologies with the Polyphaga.;Balfour-Browne;Journ. Roy. Microscopical Soc.,1944