Petersen)] OUR DOMESTIC BIRDS ELEMENTARY LESSONS IN AVICULTURE BY JOHN H. [Please select]
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PREFACE Ten years ago aviculture had hardly been thought of as a school subject. [Please select]
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= The most important invention used in aviculture is the artificial incubator. [adverb]
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OCCUPATIONS RELATED TO AVICULTURE 304 Judging fancy poultry and pigeons--Journalism--Art--Invention--Education and investigation--Manufacturing and commerce--Legislation and litigation INDEX 311 OUR DOMESTIC BIRDS CHAPTER I BIRDS AND THEIR RELATIONS TO MAN =Definition of a bird. [Please select]
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There is a general impression among those not familiar with the commercial aspect of aviculture that many more species might be domesticated. [Please select]
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