Note 19 — Chapter X
Reading edition
J. H. Powers, "Morphological Variation and its Causes in Amblystoma tigrinum." Studies from the Zoological Laboratory. The University of Nebraska, No. 71, 1907.
Reading edition
J. H. Powers, "Morphological Variation and its Causes in Amblystoma tigrinum." Studies from the Zoological Laboratory. The University of Nebraska, No. 71, 1907.