Another still-born child at seven months was also dissected and this had well-formed prepatellar bursæ, scanty ones over the olecranon processes, also over the small joints of the hand and foot where they were difficult to isolate and over the malleoli they were only slightly developed. A fœtus in spirit I examined and found no commencement of a prepatellar bursa. Examination of Living Primates. _Anthropoid Apes._ Eight of these I examined during life at the London Zoological Society’s gardens in 1908, four _chimpanzees_, two _orangs_ and two _gibbons_. These afforded the opportunity of ascertaining by means of touch the presence, and in a minor degree the size and efficiency of the main subcutaneous bursa, just as one can do this in a human subject. The _chimpanzees_ were A, aged thirteen; B, aged seven; C, aged three; and D, aged two-and-a-half years; the orangs E, aged thirteen; F, aged three years; the gibbons G and H both two to three years. These eight specimens possessed good examples of the leading subcutaneous bursæ over the olecranon process, the styloid process of the ulna, the patella and both malleoli. The smaller and less definite bursæ gave the following results. _Chimpanzees._ A. _Hand._ Bursæ on all the metacarpal and first phalangeal joints; none on the second phalangeal joints of D 2, 3, 4, 5. _Foot._ Bursæ well marked on the five metatarsal first phalangeal joints; none on D 2, 3, 4, 5 joints, but one on that of D 1. None found on second row of phalangeal joints. B. Moderate development of bursæ on metacarpo- and metatarso-phalangeal joints of D 1; doubtful on those of D 2, 3, 4, 5. On hand and foot first phalangeal joints, bursæ present, on second row absent. C and D were similar. Metacarpo- and metatarso-phalangeal joints, none in C and scanty in D. No bursæ on any phalangeal joints of hand or foot. _Orangs._ E. Metacarpo- and metatarso-phalangeal joints, bursæ ill-developed, first row of phalangeal joints of hand and foot moderate, second row none. F. Metacarpo- and metatarso-phalangeal joints more marked than in E., and well developed on all phalangeal joints. _Gibbons._ G. Metacarpo- phalangeal and metatarso-phalangeal joints poorly developed on D 2, 3, 4, 5, and none on those of D 1. Absent on all phalangeal joints. The digits of the gibbons were very long and evidently efficient in action, but were never flexed to any great degree. Dead Specimens. I also examined the hands and feet after death of certain lower Primates in 1909:-- H. Hapalemur Griseus. I. Hapale Jacchus. J. Cercopithecus Callitrichus. K. Cercopithecus Mona. L. Macacus Rhoesus. _Hapalemur Griseus_ H. _Hands._ No bursæ on styloid processes of radius and ulna, and no localised bursæ on any metacarpo-phalangeal or phalangeal joints.