Litchfield, Isaac W, Massachusetts Institute of Technology. Society of Arts · Boston, Mass. : The Society · leaf 79
Science Conspectus 67 … Drawings of unhatched fish embryos which show different stages of artificially induced suppression of the eye development. The upper left-hand specimen has no eyes, nevertheless two perfect crystalline lenses (L) have developed. erly regulating the treatment fish's eggs developing foetus, but also…
Science
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.