![The first principles of heredity; with 75 illustrations and diagrms . C Fig. 56.—Combs of Fowls. (After Thomson and Weir.) A, single serrated comb; B, rose comb; C, pea comb; D, walnut The first principles of heredity; with 75 illustrations and diagrms . C Fig. 56.—Combs of Fowls. (After Thomson and Weir.) A, single serrated comb; B, rose comb; C, pea comb; D, walnut](https://c8.alamy.com/comp/2AM3848/the-first-principles-of-heredity-with-75-illustrations-and-diagrms-c-fig-56combs-of-fowls-after-thomson-and-weir-a-single-serrated-comb-b-rose-comb-c-pea-comb-d-walnut-comb-by-p-then-as-well-as-p-will-denote-a-single-comb-bothr-and-p-being-recessive-to-either-rose-comb-or-pea-combr-x-p-gives-a-walnut-rxp-gives-as-r-and-p-are-absent-mendelism-135-a-single-comb-the-difference-from-the-previous-case-liesin-the-fact-that-both-recessive-characters-r-as-well-as-pare-identical-representing-the-single-comb-it-will-benoted-also-that-whilst-up-to-now-in-the-production-o-2AM3848.jpg)
The first principles of heredity; with 75 illustrations and diagrms . C Fig. 56.—Combs of Fowls. (After Thomson and Weir.) A, single serrated comb; B, rose comb; C, pea comb; D, walnut
![Practical poultry production . Poultry. BREEDS AND VARIETIES 31 Light and Dark Brown, Rose Comb Brown, Single and Rose Comb White, Single and Rose Comb Buff, Single Comb Black, Silver and Practical poultry production . Poultry. BREEDS AND VARIETIES 31 Light and Dark Brown, Rose Comb Brown, Single and Rose Comb White, Single and Rose Comb Buff, Single Comb Black, Silver and](https://c8.alamy.com/comp/RDP8J4/practical-poultry-production-poultry-breeds-and-varieties-31-light-and-dark-brown-rose-comb-brown-single-and-rose-comb-white-single-and-rose-comb-buff-single-comb-black-silver-and-red-pyle-the-single-comb-white-leg-horn-is-not-only-the-most-popular-variety-but-the-one-gen-erally-found-on-commercial-egg-farms-leghorns-are-neat-appearing-alert-and-stylish-in-their-bearing-all-varieties-of-this-breed-have-yellow-skin-and-shanks-an-indication-of-their-size-may-be-secured-from-the-following-standard-weights-cock-53-lbs-hen-4-lbs-cockerel-4j-lbs-pullet-31-lbs-the-ancon-RDP8J4.jpg)
Practical poultry production . Poultry. BREEDS AND VARIETIES 31 Light and Dark Brown, Rose Comb Brown, Single and Rose Comb White, Single and Rose Comb Buff, Single Comb Black, Silver and
![Comb types: (a) single, (b) pea, (c) rose, (d) strawberry and (e) walnut. | Download Scientific Diagram Comb types: (a) single, (b) pea, (c) rose, (d) strawberry and (e) walnut. | Download Scientific Diagram](https://www.researchgate.net/publication/236218102/figure/fig1/AS:299400493584389@1448394048272/Comb-types-a-single-b-pea-c-rose-d-strawberry-and-e-walnut.png)