Natural history and propagation of fresh-water mussels . Fig. 2.—Seining fish in Lake Pepin for mussel propagation. Fig. 3.—Transferrin!: fish to infectiun tank. Foreman inboat is pouring the glochidia from a can into the Fig. 4.—Sorting the fish for infection with glochidia. Bull. U. S. B. F., 1919-20. Plate XIX.

---

Size: 2419px × 1033px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwashi, bookyear1921