264 TRANSPLANTATIONS 



HARRISON, R. G. , 1935 - "Heteroplastic grafting in embryology." Harvey Lectures, p. 116. 



HERTWIG, G., 1927 - "Beitrage ram Dctemjinations-und-Regenerationsproblem mittels den transplantation Haploidkernigen 



Zellen. " Arch. f. Ent. Mech. 111:292. 

 HEWITT, D. C., 1935 - "Xenoplastic transplantation of amphibian eye rudiments. " Jour. Exp. Zool. 69:235. 

 HUMPHREY, R. R. , 1944 - "The functional capacities of heteroplastic gonadal grafts in the Mexican axolotl and some hybrid 



offspring of grafted animals. " Am. Jour. Ant. 75:263. 

 HUMPHREY, R. R. G R. K. BURNS, Jr., 1939 - "An incompatibility in heteroplastic parabiosis or grafting in Amblystoma due 



to a toxin of cutaneous origin. " Jour. Exp. Zool. 81:1. 

 KOLLROS, J. J., 1940 - "The disappearance of the balancer in Amblystoma larvae. " Jour. Exp. Zool. 285:33. 

 KORSCHELT, E. , 1927 - "Regeneration und Transplantation. " Berlin. 

 LOEB, L. , 1930 - "Transplantation and individuality. " Physiol. Rev. 10:547. 



MEDAWAR, P. B. , 1958 - "The immunology of transplantation" in The Harvey Lectures 1956-'57, Academic Press, N. Y. 

 NICHOLAS, J. S., 1924 - "The development of the balancer in Amblystoma. tigrinum". Anat. Rec. 28:317. 

 OPPENHEIMER, J. , 1939 - "The capacity for differentiation of fish embryonic tissues implanted into amphibian embryos. " Jour. 



Exp. Zool. 80. 

 PERRI, T. , 1950 - "The biological action of x-rays on embryos of amphibians. Experiments on transplantations. " Rev. Biol, 



42:119-154. 

 PIATT, Jean, 1941 - "Grafting of limbs in place of the eye in Amblystoma. " Jour. Exp. Zool. 86:77. 

 ROTMANN, E. , 1935 - "Der Anteil von Induktor und reagierendem Gewebe an dcr Entwicklung der Kiemen ihrer Gefasse. " Arch. 



f. Ent. Mech. 133:225. 

 SCHOTTE, O. E. & M. V. EDDS, 1940 - "Xenoplastic induction of Rana pipiens adhesive discs on balancer site of Amblystoma 



punctatum." Jour. Exp. Zool. 84:199. 

 SCHWIND, J. L. , 1937 - Tissue reactions after homoplastic and heteroplastic transplantations of eyes in the anuran amphibia. " 



Jour. Exp. Zool. 77:87. 

 SEVERINGHAUS, A. E., 1930 - "Gill development in Amblystoma punctatum. " Jour. Exp. Zool. 56:1. 

 SIMONSEN, M. , 1957 - "The impact on the developing embryo and newborn animal of adult homologous cells. " Acta. Path. 



Microbiol. Scand. 40:480. 

 SNELL, G. D., 1957 - "The homograft reaction. " Aw. Rev. Microbiol. II;439. 

 STONE, L. S., 1934 - "Production and metamorphosis of chimeras in anurans and urodeles. " Proc. Soc. Exp. Biol. G Med. 



31:1084. 

 STONE, L. S. G I. S. ZAUR, 1940 - "Reimplantation and transplantation of adult eyes in a salamander (Tritums viridescens) with 



return of vision. " Jour. Exp. Zool. 85:243. 

 SWETT, F. H., 1937 - "Determination of limb -axes." Quart. Rev. Biol. 12:322. 



TWITTY, V. C. , 1934 - "Growth correlations in amphibia studied by the method of transplantations. " Cold Spring Harbor Sym- 

 posium Biology. 2:148. 

 TWITTY, V. C. , 1937 - "Experiments on the phenomenon of paralysis produced by a toxin occurring in Triturus embryos. " Jour. 



Exp. Zool. 76:67. 

 von UBISCH, L. , 1931 - "Keimblattchimaren. " Verhandl. du Deutsch Zool. Cesell. 178. 



"Critical puiiils occur during onbryunic devclupDicnl. iiioiiiciUs at 

 which a given anioitnt and intensity of interference by external agents will 

 more easily put an end to the process or make it diverge from its normal 

 course, tluin at other times. " 



C. R. Stockard 



"The search for TRUTH is in one way hard and in another easy. For 

 it is evident tliat no one can master it fully nor miss it wholly. But each 

 adds a little to our knowledge of NATURE, and from all the facts assembled 

 there arises a certain grandeur. " 



Aristotle 



