270 MEMOIRS OF THE CARNEGIE MUSEUM. 
part of the inferior lamina of the transverse process, by which it is in the pre- 
ceding vertebree attached to the centrum behind becomes obsolete, or at most 
only vestiges of it remain as a thin wing of bone on the back of the lower 
margin of the transverse process. The anterior and posterior tubercles of the 
transverse process are so fused together as to become indistinguishable from 
each other, and combine at the outer extremity of the transverse process to form a 
somewhat reflexed rounded termination. The keel of the centrum almost wholly 
disappears. ‘The neural spine is long, slender, pointed, and lies in almost the 
same plane as the posterior articulating face of the centrum. All of the antero- 
posterior and most of the transverse dimensions of the bone, except those of the 
anterior and posterior articulating faces of the centrum, are greatly reduced. 
MEASUREMENTS OF SEVENTH CERVICAL VERTEBRA. 
No. 1604, 
mm. 
Greatest length from front margin of prezygapophyses to hind margin below measured between 
Jaic9)0\-3 0000 (01 Ch ac ne eM er haere ns eine AER eS Week Alot 4 Gunuinrdidine oaind Ooo. ode Lous bec 174 
Height: to top of neutal spines): sa Fcc Peioe cos acre tc Seems Sree eee eee eV eee Ree cee NTT aan 142 
Tseng throficentrumial ongaundensuntaceare eee eee eee eer erent rn etree ee 132 
Antero-posterior diameter: of pedicelt asic: cian eke cin sare ence tam orci one ree ee 42 
Dianreteracrosstaceolprezycapop hySCs Hernan heer erate ee eee eer eee 160 
Distancelbetiweenkiaces omprezyeapophysesabovene reer eeee ee her eee eee Eee 48 
Diameter across postzyeapophysSesi: auras roca ween eerie ore OV eee 148 
Distancesbetweenktacesioipostzyeap Op ly Ses tim ti OT emer rere ne Tee pele ete ace een 52 
Distancelbetweenlpostzycapophiyses oe hin clare e ree eerie ei aera 45 
Diameter across extremities of transverse processeS...........:0e eee e eee ee eee ee ee ee steer eres 175 
Transverse diameter of articular faces of prezygapophyses................--2+++++++e+eseeeees 60 
Supero-inferior diameter of articular faces of prezygapophyses.................-..+++-+--+---ss 55 
Transverse diameter of articular faces of postzygapophyses..................-...:--- ee ae ee 50 
Supero-inferior diameter of articular faces of postaygapophyses..................00---e0eeeeeee 45 
Vertical-diameter of neural canal s.)2.0.2 . $c. sea Pee os EEE eee 35 
‘Transverse diameter of neuralicanal © So. eater Per ene esi oii Se ce eae 45 
Antero-posterior diameter of anterior articulating face of centrum........................----- 50 
Transverse diameter of anterior articulating face of centrum. .............---0+. sees ee snes 50 
Transverse diameter of posterior articulating face of centrum........................-.------- 85 
Supero-inferior diameter of posterior articulating face of centrum..................2...+--eeee 80 
Vertical height of posterior end of centrum measured perpendicularly......................00-- 45 
Distance of neural canal from bottom of centrum at middle..........-.-22..2.0s---s5---8----- 37 
‘Transverse diameter of neuralispineamtronte. rere eee se eee ee ee ee 2 
Transverse diameter of neural spine above over origin of postzygapophyses...................-- 10 
Antero-posterior diameteriof spine at omer aareem pee ae oe © a ce ae nee ee 45 
Antero-posterior diameter of spine at upper extremity. ..............0.cecceeeeweeeeteereeees 15 
Height of spine from origin’. «a2, 5.535 cise ereteveteetenedevercte eas eres ois. eae eee ee eee 120 
Antero-posterior diameter of outer margin of transverse process............-...-cceeeeeeeeeeee 30 
