Three photos of cells (2:15, 2:30, 2:35)
AuthorTrinkaus, John P.
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Three black and white photos of cells. The photos have been labelled along the side with times (2:15, 2:30, 2:35), and several cells in each have been marked with a red dot. The right image is labelled "shield" at the bottom, indicating the side of the embryo where the embryonic shield was forming.Probably Fundulus embryos