5 



» 



50. . 1956a. Call difference as an isolation mechanism in 

 southwestern toads (genus Bufo) . 8: 87-106. 



51. . 1956b. Mating call and possible stage of speciation 

 of the Great Basin spadefoot. 8: 236-238. 



52. . 1956c. The mating calls of hybrid toads. 8: 350- 



355. 



53. . 1957, Mating call and relationships of Bufo 



hemiophrys Cope. 9: 99-108. 



54. . 1958. Mating call and stage of speciation of two 



allopatric populations of spadefoots (Scaphiopus) . 10: 

 484-488. 



55. . 1959. Genetic compatibility and species groups in 



U. S. toads (Bufo). 11: 427-453. 



56. . 1960, Radiation-induced genetic damage in the 



Mexican toad {Bufo valliceps) . 12: 216-229. 



57. . 1961. Further evidence bearing on intergroup and 



intragroup genetic compatibility in toads (genus Bufo). 

 13: 163-175. 



58. . 1963. Intragroup genetic compatibility in the Bufo 



americanus species group of toads. 15: 15-34. 



59. . 1964a. Evidence bearing on relationships of the 



Bufo boreas group of toads. 16: 181-192. 



60. . 1964b, Relationships of the Bufo cognatus group of 



toads as indicated by hybridization experiments: Abs. 

 16: 494-495. 



61. , 1966, Genetic compatibility in the Bufo valliceps 



and closely related groups of toads. 18: 333-351. 



62. and David Pettus. 1954. The mating call and its 



significance in the Colorado River toad Bufo alvarius 

 Girard). 6: 72-77. 



63. Block, Edward F. , IV. 1967, Parasites of the Texas cricket 



frog, Acris crepitans: Abs. 19: 422. 



64. Bloom, Roy A. and Mohammed Y. H. Farooqui. 1992. 



Concentrations of nonprotein sulfhydryls in the 

 Mediterranean gecko, Hemidactylus turcicus (Gekkonidae: 

 Squamata). 44: 75-78. 



65. Bonn, Edward W. and W. H. McCarley. 1953. The amphibians 



and reptiles of the Lake Texoma area. 5: 465-471. 



66. Boston, Jim D. and Charles R, Willms, 1968. 



Characteristics of proteolytic activity of pepsin from 

 Rana catesbeiana. 20: 77-86. 



67. Brach, Vincent. 1992. Discovery of the Rio Grande chirping 



frog in Smith County, Texas (Anura: Leptodactylidae) . 

 44: 490. 

 Brindley, Darlene C, see Cannon, M. Samuel and Manley 

 McGill, 1978. 



68. Brockman, H. L. and J, P, Kennedy. 1962. Open heart 



surgery in Alligator mississipiensis Daudin: Abs. 14: 

 423—424 . 



69. and J. P. Kennedy. 1963. Tolerance to aquatic 



submersion in Alligator mississipiensis following surgical 

 occlusion of the left aortic orifice: Abs, 15: 417-418. 



Brodie, Edmund D., Jr., see Campbell, Jonathan A. and Daniel 

 R, Formanowiez, Jr., 1989. 



70. Brown, Bryce C. and Lillian M. Brown. 1967. Notable 



