Still Image
Hand drawn sketches in pencil and colored pencil of exogastrulae, along with hand written notes in pencil. Some of the exogastrulae are labelled with hours and constitute a time series. The colors indicate the movements of different cell groups.
4 black and white photographs of exogastrulae (appear to be amphibian). The photos have been pasted to a skeet of blue card stock and are labelled in ink.
Hand drawn sketch of chick embryo (4 days incubation) and the development of the wing and limb buds. Also hand written notes about the stage of the embryo and the differences between it and other stages.
Hand drawn illustration showing how to transplant limb buds in a 36-somite stage (3 days of incubation) chick.
Hand drawn sketches in pencil and colored pencil of exogastrulae, along with hand written notes in pencil. One of the exogastrulae is covered in small arrows, indicating the movement of cells in different directions as the embryo expands.
Hand drawn sketches of cells (some colored in blue) along with hand written notes (pencil)
3 micrographs and 2 hand drawn images of chick somite development. Top left shows a piece of a transverse section of a stage 10 chick embryo. Middle top and bottom shows a close up of the somite (transverse section). Right top and bottom are hand drawn images of cells in the somites.
7 micrographs showing the results of chick limb transplantation
4 black and white photographs of chick limb bud development. Stage 29. The limb buds have been removed from the embryo and are placed on a black background. The image on the top left is of only a wing bud at stage 29.
Plate XIX from Edmund Beecher Wilson's "The Cell-Lineage of Nereis" in the Journal of Morphology, Vol. 6, 1892. The plate shows 12 images of various stages of Nereis embryos with labelled cells.
Hand drawn sketches pencil of cells and embryos along with with hand written notes
10 black and white photographs of transverse sections through various stages of chick embryos. The bright white oval in the center of each section is the central canal of the developing chick's neural tube. The photographs are arranged so that dorsal is up.