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Satirical comment on a review by Paul Weiss of the manuscript of 'Analysis of Development'., Typewritten carbon copy on yellow paper., Correspondence

Handwritten, a letter in German, 6 pages, Correspondance

Handwritten, a letter in German, 2 pages, Correspondance

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., At least one of these photos were used for the images in Hamburger, Viktor, and Howard L. Hamilton. "A series of normal stages in the development of the chick embryo." Journal of morphology 88, no. 1 (1951): 49-92. However, in the final publication, the photos of limb buds were placed beneath photos of the whole chick embryo at their given stage., Photographs

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., Illustrations

7 micrographs showing the results of chick limb transplantation, The micrographs have been labelled with numbers and hand drawn notes indicating different bones (fe=femur, t=tibia, f=fibula, c=clavicle, s=scapula). The images have been pasted onto a sheet of cardstock, which has various pencil markings., Photographs

13 black and white photographs of different stages of chick limb bud development. The limb buds have been removed from the embryo and are placed on a black background. Stages 23 through 35 are pictured. Wing buds are pictured on top, leg buds on the bottom., These photos were used for the images in Hamburger, Viktor, and Howard L. Hamilton. "A series of normal stages in the development of the chick embryo." Journal of morphology 88, no. 1 (1951): 49-92. However, in the final publication, the photos of limb buds were placed beneath photos of the whole chick embryo at their given stage., Photographs

4 black and white photographs of different stages of chick development (whole embryos). Stages 12, 13, 14, and 22 are shown., These photos were used for the images in Hamburger, Viktor, and Howard L. Hamilton. "A series of normal stages in the development of the chick embryo." Journal of morphology 88, no. 1 (1951): 49-92., Photographs

Hand drawn sketch of chick embryo (4.5 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., Drawn in pencil, Illustrations

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., handwritten notes about image sizing along the sides of the images., Photographs

Hand drawn sketches of early-stage chick limb bud development along with hand written notes about the embryo., Drawn in pencil, Illustrations

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., Drawn in pencil, Illustrations

Hand drawn illustration showing how to transplant limb buds in a 36-somite stage (3 days of incubation) chick., Hamburger has drawn and labelled various pieces of anatomy and the equipment necessary to complete the procedure., Drawn in pencil on blank paper, mounted on cardboard. Signed in black ink by Viktor Hamburger, Univ. of Chicago, Illustrations

Hand drawn illustration of the outcome of chick limb bud transplantation, The limb of the "transplant" and "left leg of donor" are shown as a result of the transplantation experiment, Drawn and parts labelled in ink, shaded in pencil. The titles of the two specimens have been typed., Illustrations

Hamburger accepts Lillie's offer of a place to stay and details his time at the National Institutes of Health in Bethesda, Handwritten letter; good condition, 2 pages, Correspondence

Hamburger acknowledges Lillie's recommendation to retrieve Popoff book from library, Copy of typewritten telegram; good condition, 1 page, Telegram

Outline of laboratory work for Experimental Embryology course, Typewritten document; good condition, 1 page, Notes

Hamburger acknowledges Lillie's recommendation to retrieve Popoff book from library, Typewritten telegram; good condition, 1 page, Telegram

Hamburger informs Lillie of his arrival in Berlin and the good health of his family, details his plans to return to Chicago, Handwritten letter; good condition, 2 pages, Correspondence

Hamburger informs Lillie of an offer to head a laboratory in Odessa and his hesitancy to accept the position, Handwritten letter; good condition, 2 pages, Correspondence

Lillie recommends that Hamburger retrieve Popoff book from library and looks forward to seeing Hamburger in Woods Hole, Typewritten letter; good condition, 1 page, Correspondence

Lillie agrees to recommend Florence Moog's paper for publication and discusses some of the mechanics, Typewritten letter; good condition, 1 page, Correspondence

Hamburger informs Lillie of his development of course materials and the slow pace on his own research, which should speed up following a grant by the Rockefeller Foundation, Copy of handwritten letter; good condition, 2 pages, Correspondence

Hamburger informs Lillie about issues at Washington University and his need to search for a new position, Hamburger requests Lillie's help in locating a new position, Copy of handwritten letter; good condition, 2 pages, Correspondence

Lillie comments on the death of Hans Spemann and recalls his last letter from Spemann, Typewritten letter; good condition, 1 page, Correspondence

Lillie sympathizes with Hamburger's prospects at Washington University and offers help in recommending him for another position, Typewritten letter; good condition, 1 page, Correspondence

Lillie hopes for the publication of Hamburger's lab manual and looks forward to seeing Hamburger in Woods Hole, Typewritten letter; good condition, 1 page, Correspondence

Hamburger informs Lillie of his development of course materials and the slow pace on his own research, which should speed up following a grant by the Rockefeller Foundation, Handwritten letter; good condition, 2 pages, Correspondence

Hamburger informs Lillie of his completion of his lab manual and the preparations for the embyrology course in Woods Hole, Copy of typewritten letter; good condition, 1 page, Correspondence

Hamburger informs Lillie about his decline of the offer in Odessa and his preparation of lectures for his reappoinment, Handwritten letter; good condition, 2 pages, Correspondence

Lillie commends Hamburger's decision to turn down the offer from Odessa, Typewritten letter; good condition, 1 page, Correspondence

Comments on embryonic segregation, Typewritten letter; good condition, 1 page, Correspondence

Hamburger notes the work of J.M. Cairns and requests a copy of Popoff's book from Lillie; informs Lillie of the acceptance of his manuscript, Copy of typewritten letter; good condition, 1 page, Correspondence

Hamburger thanks Lillie and includes a pamphlet from Spemann, Handwritten letter; good condition, 1 page, Correspondence

Hamburger notes a manuscript for Lillie to read and details his plan for Woods Hole, Typewritten letter; good condition, 1 page, Correspondence

Hamburger informs Lillie of his completion of his lab manual and the preparations for the embyrology course in Woods Hole, Typewritten letter; good condition, 1 page, Correspondence

Hamburger thanks Lillie for a photo and details his work on a Lab Manual for the University of Chicago Press, Handwritten letter; good condition, 2 pages, Correspondence

Hamburger thanks Lillie for a photo and details his work on a Lab Manual for the University of Chicago Press, Copy of handwritten letter; good condition, 2 pages, Correspondence

Lillie celebrates Hamburger's anticipated return to Chicago and offers help in Hamburger's arrangements for another year, Typewritten letter; good condition, 1 page, Correspondence

Lillie comments on a theory of development and looks forward to seeing Hamburger, Typewritten letter; good condition, 1 page, Correspondence

Lillie thanks Hamburger for manuscript copy and details his work with a new assistant, Copy of typewritten letter; good condition, 1 page, Correspondence

Notes and list written in German, Handwritten letter; good condition, 1 page, Notes

Hamburger thanks Lillie for sponsoring Florence Moog's publication, Typewritten letter; good condition, 1 page, Correspondence

Lillie thanks Hamburger for manuscript copy and details his work with a new assistant, Typewritten letter; good condition, 1 page, Correspondence

Handwritten, a letter in German, 2 pages, Correspondance

Handwritten, a letter in German with an image, 4 pages, Correspondance

Typewritten, a letter in German, 1 page, Correspondance

Hamburger lays out problems with a theory of development Lillie proposed, Typewritten letter; good condition, 2 pages, Correspondence

Lillie thanks Hamburger for reprints and comments on a review Hamburger wrote, Typewritten letter; good condition, 1 page, Correspondence

Hamburger notes a manuscript for Lillie to read and details his plan for Woods Hole, Copy of typewritten letter; good condition, 1 page, Correspondence