Natural history and propagation of fresh-water mussels . Fig. I.—Auiilaize River near Defiance. Ohio, showingislets and pools coutaiumy dense beds ol mussels. _? — River, ru-fiaiice The riverheii a broad valley with limestone bottom, brokeninto numerous pools and channels with little islands—an excellent growth of fresh-water

---

Size: 1770px × 1411px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwashi, bookyear1921