Johnson, Charles Eugene2016-03-092016-03-091913-01https://hdl.handle.net/11299/178006University of Minnesota Ph.D. dissertation. June 1912. Major: Biology. 1 computer file (PDF); 66 pages. [120-185]. Reprinted in the American Journal of Anatomy.enBiologyThe Development of the Prootic Head Somites and Eye Muscles in Chelydra SerpentinaThesis or Dissertation