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Agriculture Handbook
Set includes revised editions of some issues.
List of Sires Proved in Dairy Herd Improvement Associations, 1943
This summary, together with the one on farm crops, by the use of maps and supplementary charts, portrays the quantitative and geographic significance of production of the Nation's food supply.
The Fleas of North America
The proper identification of fleas forms a sound basis for disease prevention and flea control. This publication, prepared primarily as a taxonomic revision, will help those called upon to identify the species of these insects and recommend control procedures. Full descriptions are given of the genera ad higher groups, accompanied in most instances by figures. For species, subspecies, and varieties formal descriptions are avoided, but data have usually been supplied for each as follows: Indication of synonymy, name of type host, type locality, statement relative to range, and remarks upon identification characteristics, nature of original description, references to figures, published notes on biology or economic importance, and redescriptions.
