Scope and Contents The material consists of a mix of figures and plates mounted on card, printed copies of figures and loose photographic material, chiefly depicting developing embryos. Contains some figures for 'Teratogenic effects of trypan blue on amphibian embryos' and 'Effects of some amino-acid and purine antagonists on chick embryos', (published in the Journal of Embryology and Experimental Morphology in 1956 and 1958 respectively), and possibly others in addition....