Note 192 — Chapter II · PLUM CULTURE.
Reading edition
For references to these scales see Fernald, Mrs. M. E. Coccidae of the World Mass. Sta. Bul. 88:1-360. 1903.
Reading edition
For references to these scales see Fernald, Mrs. M. E. Coccidae of the World Mass. Sta. Bul. 88:1-360. 1903.