. Carnegie Institution of Washington publication . - • m ••-•• . I . \: • jj& - • .- Kg ••- m :• i .; - . BE>H .. » K , . EBoB • 1 . ^•. WASHINGTON, D. C. PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 1909 CARNEGIE INSTITUTION OF WASHINGTON, PUBLICATION No. 114. PAPERS OF THE STATION FOR EXPERIMENTAL EVOLUTION, No. 13. CONTRIBUTIONS FROM THE ZOOLOGICAL LABORATORY OF THE MUSEUM OF COMPARATIVE ZOOLOGY AT HARVARD COLLEGE. E. L. MARK, DIRECTOR. No. 199. The Plimpton Press Norwood Mass. CONTENTS. Page PREFACE PART I. — EAR-SIZE 9-35 Introduction 9 Characteristics of lop-eared


. Carnegie Institution of Washington publication . - • m ••-•• . I . \: • jj& - • .- Kg ••- m :• i .; - . BE>H .. » K , . EBoB • 1 . ^•. WASHINGTON, D. C. PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 1909 CARNEGIE INSTITUTION OF WASHINGTON, PUBLICATION No. 114. PAPERS OF THE STATION FOR EXPERIMENTAL EVOLUTION, No. 13. CONTRIBUTIONS FROM THE ZOOLOGICAL LABORATORY OF THE MUSEUM OF COMPARATIVE ZOOLOGY AT HARVARD COLLEGE. E. L. MARK, DIRECTOR. No. 199. The Plimpton Press Norwood Mass. CONTENTS. Page PREFACE PART I. — EAR-SIZE 9-35 Introduction 9 Characteristics of lop-eared rabbits; sterility and its inheritance .... 9 Growth-rate of lop-eared and of short-eared rabbits in size and in ear-length 12 Matings of short-eared rabbits inter se 14 Matings of lop-eared rabbits inter se 16 Cross i. — Lop-eared female X short-eared male 18 Cross 2. — Short-eared female X lop-eared male 18 Cross 3. — Belgian hare female X lop-eared male ... 20 Cross 4. — Lop-eared female X half-blood lop male 21 Cross 5. — Half-blood lop female X lop male 179 22 Cross 6. — Half-blood lops mated inter se 23 Other matings ofcarnegieinstitut114carn


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