_AM. JOUR. SCI., Vol. XVII, 1879. ae Plate Ill. 
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Figure < faeries vertebra of Apatosaurus laticollis Marsh; back view. 
Figure 2.—The same; side view. Both one-sixteenth na tural size. s 
Figure 3 Hoe s st vertebra of Morosaurus grandis Marsh; side view, 
ck vi 
The signification of the saeibinng! is the same in all the figures, viz: 5. ball; 
¢. cup; d.d pris vee: p. parapophysis; A. hatchet bone; yy foramen in 
centrum ; i $ pea iit z. anterior zygapophysis; 2’. posterior 
zy gapophysis 
