Literature Cited
- Anderson , R. J. 1883 . Observation on the Diameters of Human Vertebrae in Different Regions . J. Anat. and Physiol. , 17 : 341 – 344 .
- Baur , G. 1891 . On Intercalation of Vertebrae . J. Morph. , 4 : 331 – 336 .
- Brailsford , J. F. 1929 . Deformities of the Lumbosacral Region of the Spine . Brit. J. Surg. , 16 : 562 – 627 .
- Cunningham , D. J. 1886 . The Lumbar Curve in Man and the Apes . Royal Irish Acad. Cunningham Mem. , 11 : 1 – 148 .
- Cunningham , D. J. 1898 . The Significance of Anatomical Variations . J. Anat. and Physiol. , 33 : 1 – 9 .
- Cyriax , E. F. 1920 . On Certain Absolute and Relative Measurements of Human Vertebrae . J. Anat. , 54 : 305 – 308 .
- Danforth , C. H. 1930 . Numerical Variation and Homologies in Vertebrae . Am. J. Phys. Anthrop. , 14 : 463 – 481 .
- Dwight , T. 1901 . Description of the Human Spines Showing Numerical Variation in the Warren Museum of the Harvard Medical School . Anat. Anz. , 19 : 321 – 332 . 337–347
- Dwight , T. 1906 . Numerical Variation in the Human Spine with a Statement Concerning Priority . Anat. Anz. , 28 : 33 – 40 . 96–102
- Goldthwait , J. E. , Brown , L. T. and Swain , L. T. 1934 . Body Mechanics , Philadelphia : J. B. Lippincott .
- Mitchell , G. A. G. 1934 . The Lumbosacral Junction . J. Bone and Joint Surg. , 32 : 233 – 254 .
- Rosenberg , E. W. 1912 . Contribution to the Knowledge of the Development of the Vertebral Column of Man . Proc. Sect. Sc. Akad. Wet. Amsterdam , 15 : 80 – 96 .
- Steindler , A. 1929 . Diseases and Deformities of the Spine and Thorax , St. Louis : C. V. Mosby Co. .
- Todd , T. W. 1922 . Numerical Significance in the Thoracicolumbar Vertebrae of the Mammalia . Anat. Rec. , 24 : 260 – 284 .
- Todd , T. W. and Pyle , S. I. 1928 . Effects of Maceration and Drying Upon the Vertebral Column . Am. J. Phys. Anthrop. , 12 : 303 – 319 .
- Todd , T. W. and Pyle , S. I. 1928 . A Quantitative Study of the Vertebral Column by Direct and Roentgenoscopic Methods . Am. J. Phys. Anthrop. , 12 : 321 – 337 .
- Trotter , M. 1926 . The Sacrum and Sex . Am. J. Phys. Anthrop. , 9 : 445 – 450 .
- Turner , W. 1886 . The Lumbar Curve of the Spinal Column in Several Races of Men . J. Anat. and Physiol. , 20 : 536 – 543 .
- Von Lackum , H. L. 1924 . The Lumbosacral Region: An Anatomic Study of Some Clinical Observations . J. A. M. A. , 82 : 1109 – 1114 .
- Willis , T. A. 1932 . Backache—An Anatomical Consideration . J. Bone and Joint Surg. , 14 : 267 – 272 .
- Willis , T. A. 1935 . Backward Displacement of the Fifth Lumbar Vertebra: An Optical Illusion . J. Bone and Joint Surg. , 17 : 347 – 352 .