The following measurements of limb bones may be interesting, as indicating considerable variety in size as well as deviation from modern proportions, as indicated by comparison with the bones of the same sheep skeleton which I have used for comparison in previous communications. One adult metatarsal measures 5·7 inches long and ·4 broad, and another 5·2 long and ·4 broad at the narrowest part of the shaft. In the modern specimen this bone is 4·8 long and ·5 broad. Three specimens of adult radius have been gathered, measuring in length respectively 6·6, 6·, and 5·9; while in the modern specimen the corresponding bone is only 5·2. Two complete humeri are among the specimens gathered. The largest, not quite adult, is 5·7 inches in greatest length; while the other, quite adult, is only 5 inches long, and in the modern specimen the humerus is 5·2 long. Four additional specimens of the lower end of the humerus have been obtained; and one of them is decidedly larger than the largest complete specimen, and another decidedly smaller than the smallest complete bone. [Illustration: PLAN OF BUISTON CRANNOG] [Illustration: PLATE IV.] The sheep was therefore long and slender legged, like those found on other Ayrshire deposits. But it is difficult to determine whether the differences in size depend on sex, or some other cause, such as cultivation. No goat bones have been found in connection with this lake-dwelling. FOOTNOTES: [Footnote 31: As the articles found on the occasion here referred to, as well as the bronze armlet returned by Mr. MacFadzean, have been misplaced, and, in the absence of Sir James Fergusson, could not be found so as to be described and figured in the general notice of Lochspouts, I may state that they were as follows, viz., a hammer-stone, a chisel, two bronze armlets, two pointed implements of deer's horn, a granite quern-stone, several bruising-stones, together with a large quantity of bones.] [Footnote 32: Regarding the suggestion that these polished stone discs might have been used as mirrors, see Notes by Mr. Joseph Anderson, _Proceed. Soc. Antiq. Scot._ vol. x. p. 717.] [Footnote 33: In case K, in the York Museum, which was constructed in 1872-3, to hold the specimens of Roman Metal Work, Implements, and Ornaments of Bone, Jet, etc., are:--Four keys almost identical with that figured above; several articles of bronze of a similar type with the object represented by Fig. 175; a small circular bronze brooch with transverse grooves like Fig. 241; three small bifurcated objects like Fig. 240; harp-shaped fibulæ, like those from Lochlee; besides many bone pins and combs, jet rings, beads, etc., all of which are wonderfully like the corresponding articles found on the crannogs.]