The relation between normal and abnormal development of the embryo of the frog, as determined by injury to the yolk-portion of the egg T. H. Morgan OriginalPaper Pages: 238 - 313
The internal factors in the regeneration of the tail of the tadpole T. H. MorganS. E. Davis OriginalPaper Pages: 314 - 318
Entstehn eines Schweinehinterfulses mit fünf Zehen und der Begleiterscheinungen Gustav Tornier OriginalPaper Pages: 327 - 353