Abstract
THESE diagrams are printed upon a black background as if drawn upon a blackboard and the actual area covered by the illustrations is 40 in. x 29 in. on each sheet. No names or key letters are provided and this is in some ways an advantage since it allows the instructor to give as many or as few technical names as may be thought desirable and enables them to be used for questioning. From their size they are adapted for use with small classes, say up to 50 but not to large lecture theatres accommodating 200–300 students. Even then, some of the smaller drawings, as, for example, the end-on view of the atlas vertebra and the diagram of the relationship of the dorsal and ventral nerve roots to the skin and a piece of muscle, are so small that they could only be seen properly in the front rows and would need to be examined at closer range by the students.
Blackboard Coloured Diagrams: Biological Series. Rana temporaria
(The Common Frog). 44 in. ×; 31 in. Rana temporaria (Skeleton). 44 in. × 31 in. Rana temporaria (Brain and Nervous System). 44 in. × 31 in. (London: Sidgwick and Jackson, Ltd., 1933.) Mounted on cloth, eyeletted, 10s. 6d. each.
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Blackboard Coloured Diagrams: Biological Series Rana temporaria . Nature 131, 786 (1933). https://doi.org/10.1038/131786a0
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DOI: https://doi.org/10.1038/131786a0