184 Proceedings of the Royal Physical Society. 
passes in front of this tooth, it is therefore the first molar ; 
'Ad^ smaller than first, shorter, conical, and pointed forwards ; 
^d, rather larger than second, conical. 
(True, 3.) 4^A, two external and two internal tubercles, 
nearly equal in size ; the internal rather the largest ; bih, two 
external ; and two internal and rather larger tubercles ; Qth, 
two external ; and two internal tubercles, nearly equal, and less 
defined ; with another smaller tubercle behind. 
Incisors. Canines. Molars. 
2 • 2_ 4 1 • 1_2 6 ' 6_12_18 
2^~4' 1 • 1~2' 6^~"T2~r8~ 
Length of Body, from muzzle to point of tail, lOJ inches ; 
tail, J an inch, including fur, ^ an inch. 
Anterior Limbs : — 
Length of Arm 2 J inches ; Fore-Arm, not including hand, 
2J inches. 
Hand. — The first phalanges of the fingers are covered and 
conjoined by the integuments of the hand, the two distal bones 
being the only ones that are free ; length from wrist to point 
of fourth or longest finger, inch. 
Length of Thumb, or First Finger, from wrist, fths of an 
inch : of this, there is a free extremity of J an inch in length. 
Length of Index or Second Finger, — Metacarpal bone of 
index finger measures j^ths of an inch in length. The first 
phalanx measures t^ths of an inch, and the distal phalanx 
yVth of an inch in length ; the metacarpal bone of index 
finger and first phalanx being, together, the length of the 
metacarpal bone of the second finger. The metacarpal bones 
of the other fingers measuring about ths of an inch in length. 
Free extremity of finger about ^th of an inch. 
Length of Third Finger from wrist, fths of an inch. The 
first phalanx of third finger measures x%ths of an inch ; the 
second phalanx less than ths of an inch ; and the distal one 
rather less than r^ths of an inch. Free extremity is Jof an inch. 
Length of Fourth Finger from wrist, IJ of an inch. The 
first phalanx is nearly x^ths of an inch long; the second, 
i%ths of an inch ; and the third, about y^ths of an inch. 
Fourth finger longest, free extremity J an inch in length. 
Fifth Finger. — Length from wrist 1 inch. The first phalanx 
is about I'^^ths of an inch in length ; the second, /oths of an 
