174 REPORTS ON THE STATE OF SCIENCE.—1912. 
No. 10, @, length 60 feet 6 inches.—The left lower jaw was pale 
grey at its root, but shaded gradually to the general dark slate-colour 
in front. All the baleen- plates were dark grey on the left side, very 
slightly paler in colour towards their inner edges. 
On the right side the anterior one-third of the baleen-plates were 
yellowish-white, then came a few with grey longitudinal stripes, and 
the rest were dark grey as on the left side. 
No. 11, 2, length 67 feet 3 inches.—All the under-side was pure 
white, the upper dark slate-grey, the dark colour sloping down the 
sides, beginning above the genital opening, and the white underneath 
portion being reduced to a strip about two inches wide from the root of 
the tail to half-way between the tail and anus. There was a fairly large 
greyish patch with very irregular edges situated above the right eye, 
and extending along the outside of the right upper jaw. The under- 
side of the front half of the right upper jaw was pure white. This 
was sharply marked off from the grey of the rest of the jaw. The 
white began just behind the level at which the baleen became yellow- 
white. The left jaw was all of the dark slate-grey. All the baleen- 
plates in the left jaw were dark slate-grey, almost black. On the right 
side the first 119 plates were yellowish-white, the rest dark grey. The 
bristles were yellowish on the light-coloured plates, but pale grey on 
the dark. The total number of plates on the right side was 380. 
No. 12, &, length 53 feet 3 inches.—The general coloration was 
normal. ‘The under-side of the body was white except in the depressed 
creased part of some of the breast folds, which had patches of the dark- 
grey colour. A light-grey irregular patch extended up the side in front 
of the right pectoral fin. The under-side of the pectoral fins were 
white, and this white extended round the lower edge of the fin for 
about 134 inch. A light-grey line about } inch wide and 14 foot long 
ran backwards and upwards from the ear- “opening. The breast folds 
were less pigmented than in No. 11. 
No. 15, @, length 54 feet 3 inches.—The dorsal coloration was 
lighter than usual, although the animal had been dead some time. 
There appeared to be none of the large greyish spots usually present 
on the upper part of the body. The right pectoral fin was of a very 
pale colour, and there was less pigmentation around the insertion than 
on the distal part. 
No. 17, &, length 65 feet 7 inches.—Colour normal over the body. 
On the left pectoral fin the white only just extended round the front 
edge. A light-grey mark stretched across the outer side at the level 
of the posterior point of insertion. On the right pectoral fin the white 
colour extended round the front edge, and for nearly one-quarter of the 
way across the outer surface. 
No. 18, 9, length 65 feet 7 inches.—A dark individual. The dark 
colour extended further than usual in irregular patches on the under- 
side near the notch of the flukes. 
No. 25, @, length 66 feet 8 inches.—The front half of the right 
upper jaw was ‘of a pink colour, similar to that of the palate. 
No. 28, @, length 59 feet. The two dark streaks which normally 
start half-way up the side and half-way between the anus and the root 
