141 
Fic. 26.—Drawings from Dr. Fuhlrott’s photographs of parts of the interior of 
the Neanderthal cranium. A. view of the under and inner surface of the frontal 
region, showing the inferior apertures of the frontal sinuses (a). 3B. corresponding 
view of the occipital region of the skull, showing the impressions of the lateral 
sinuses (aa). 
Dr. Fuhlrott replied, with a courtesy and readiness for 
which I am infinitely indebted to him, to my inquiries, and 
furthermore sent three excellent photographs. One of these 
gives a side view of the skull, and from it Fig. 25 A. has been 
shaded. The second (Fig. 26 A.) exhibits the wide openings 
of the frontal sinuses upon the inferior surface of the frontal 
part of the skull, into which, Dr. Fuhlrott writes, “a probe 
may be introduced to the depth of an inch,” and demon- 
strates the great extension of the thickened supraciliary ridges 
beyond the cerebral cavity. The third, lastly, (Fig. 26 B.) ex- 
