. Silkworm food plants : cultivation and propagation. Branch of the Persian or Black Mulberry Morus nigra Bu:. 34, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate VII. B- -:-* Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate IX.

---

Size: 1401px × 1784px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, booksubjectsilkworms, bookyear19