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A set of 9 models, showing the process of mitotic cell division. The chromosomes are painted for easy identification.Models are approx. 150 x 120 mm. 
A set of 12 models, showing detailed stages in meiotic cell division, realistically coloured to bring out the detailed structures as seen under a microscope. A very useful and instructive model, mounted on board, with key card. Overall dimensions 510 x 450 x 50 mm.approx 
Natural size,Domestic hen, the right side shows the feathers and the other side all the internal organs, on base with key card.  A set of two models, one dissectable into two parts, showing the anatomy of cockroach, alimentary canal regions, salivary glands, reproductive organs, nervous system etc. The other model shows the ventral structure with detachable mouth parts, wings and appendages, with key card. Overall dimensions 670 x 625 x 210 mm.approx.  Clearly showing the order and rate of formation of embryonic tissues and organs. It also brings out the close relations of the birds to the reptiles in mode of development and general construction. Complete development from egg to adult, set of 18, mounted on a large size board, with key card. Overall dimensions 670 x 620 x 100 mm.approx.
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