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Study on the use of fish eggs in the teaching of embryology in high school biology
(1963-05)
Scope and Method of Study: The embryos of some teleost fishes are covered with a clear chorion. This report involves the methods by which certain of these embryos can be used in the high school biology program in the ...
Laboratory exercises in genetics for the high school biology class
(1963-05)
Scope of Study: The laboratory has been regarded as the heart of science by many teachers, yet the present day instruction in high school biology gives little time to the practical application and the learning experiences ...
Role of heredity in influencing mental disorders and deficiencies
(1963-05)
Scope and Method of Study: A survey of mental disorders and deficiencies that are influenced by genetic factors have been undertaken in this report. The materials used in this survey are: (1) textbooks on eugenics and ...
Foreign plant pest
(1963-05)
Scope of Report: This report has been designed to present the potential danger of the introduced plant pest, and the economic losses it can and has caused once it becomes established in our country. A plant pest, as defined ...
Effect of insecticides on bird populations
(1963-08)
Scope and Method of Study: This report has been undertaken as a comprehensive survey of scientific literature since 1945 that has dealt with the effects of insecticides on bird populations. Particular attention was given ...
Sportsman's view of the bobwhite quail
(1963-05)
Scope of Study: The bobwhite quail is one of the United States' upland game birds which is hunted quite extensively by the sportsman and his dog. In some areas of the bobwhite's range, the bird is almost extinct due to ...
Tissue and cell culture
(1963-05)
Scope of Study: This report has been prepared to give helpful suggestions to inexperienced workers in the field of tissue culturing. It is almost impossible to explain every detail of such a subject as tissue culturing. ...
Collection, care, and use of living animals in the high school biology laboratory
(1963-08)
Scope of Study: Biology is a study of living things and things that may have once been alive. It is "living things" which present the biology teacher with his problems, for the maintenance of living things requires time ...
Fire: An ecological factor in grassland
(1963-05)
Scope and Method of Study: This report is essentially a survey of the literature dealing with fire as an ecological factor in grassland areas. However, investigations which deal with anatomy, physiology, and non-grassland ...
Gynandromorphs
(1963-08)
Scope of Study: Gynandromorphs are individuals in which the distinction between male and female is somewhat vague. These sex mosaics are separated from the other mosaics in that the tissue differences are due to differences ...