250 



THOMAS 1)WI(4HT ON 



possible suggestion of a facet on the hody of thr v.-rtehra. and a somewhat oleaver one for 

 the tubercle. The length of the last ribs, following the curve, is 8 cm. for the right one 

 and 5.4 cm. for the left. The spread of the lumliar transverse processes is not typical, 

 and the lateral masses of the sacrum rise considerably. The proportions, measured on the 

 fresh spine, are very correct. There is little to note in addition to the above. 



It is probable that the lost right cervical rib was the smaller. If that be so, it is 

 interesting to note tliat the smaller last ribs are on the same side as the larger cervical 

 one, indicating a tendency of the left side of the thorax to rise. This would not l)e 

 mentioned, were it not in accord with several other undoubted cases of the same phenom- 

 enon. 



649. Cat. 9379-29. 



Female, white. C. 7, T. 12, L. 5. S. 5, (C. ?) . 



This is a case of a hU-'ipltaJ rib on tlie right, foi-med by a cervical rib fusing with the 

 1st thoracic beyond the tubercle. The head, neck and tubercle of the cervical rib are 

 nearly as large as those of the 1st thoracic. The right transverse process of the 7th 



cervical vertebra is much larger than the left one. The 

 transverse process of the 1st thoracic runs sharply upward 

 "Ik T/dk.^ to meet it, lea^dng a large gap on the right at the back, 



between the 1st and 2d thoracic ribs. The spinous process 

 is peculiar, being compressed laterally so that the end is 

 long vertically, and suggests two tips one above the other. 

 The lower part of the spine, without showing any great 

 irregularity, is not typical. The last ribs are small, the right one measuring in a straight 

 line 4.4 cm., and the left one 4. cm. It is worth noting that the one on the same side as 

 the cervical rib is the longer ; which is an exception to the concomitant changes so often 

 observed. The change of tlie articular processes is at the iKn-mal place, but rather transi- 

 tional on the right. The spread of the lumbar transverse processes is not cjuite character- 

 istic. The 5th sacral is imperfect on the right side, there being only three sacral foramina. 

 The coccyx seems short, but the number of pieces is uncertain. The cervical region is 

 relatively short,' although tlie 7th vertebra is retained in it. Tlie follcwing measurements 

 are from the fresh spine. 



649 



Neck 

 Back 

 Loins 



Total 



Length of (i49. 

 11.8 

 26.9 

 19.3 



58.0 cm. 



Average length, female. Proportions of 649. Average proportions. 

 12.1 -20.3% 21.2'-/ 



26.5 46.4 46.1 



18.7 33.2 32.7 



57.3 cm 



99.9 



100.0 



