Ontario Sessional Papers, 1913, . Pig. 2. Potamogeton natans. Floating Pond-weed. Reduced to about one-half natural size. 1913 FOR DUCKS IN NORTHERX ONTARIO. 15. Fig. 3. Potamogeton heterophyllus, Various-leaved Pond-weed. Reduced to about one-lialf natural size. The imperfect leaves are characteristic at this tim^ of year. IG TXr^EASE OF TTTE FOOD SFFPLY ^To. 72

---

Size: 1291px × 1936px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorontariol, bookcentury1900, bookdecade1910, bookyear1913