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Show 606 MR. R. TRIMEN ON BUTTERFLIES FROM MANICA. [Nov. 6, "No. 1951. Prinia mystacea, Riipp., $ . " No. 1952. Cinnyris, 3 . A small dark bird, perhaps referable to C. chloropygia, Jard. "No. 1953. Spermestes poensis, Fras., 3 . " Observed: Malimbus cristatus ; Halcgon senegalensis; Diaphoro-phyia castanea ; Psalidoprocne nitens. "No. 1954. Corythaix, 3; cf. no. 1943. The common species; always in pairs ; call, like a turtle-dove's. Very lively. " No. 1955. Andropadus latirostris, StrickL, 3 jr. Although the lower mandible is damaged by shot, an interesting specimen in so far that the malar stripes are still very faintly developed. "No. 1956. Terpsiphone nigriceps, Hartl., 3. Only the second specimen obtained. Not rare. " Guinea-fowls rather frequent. Corythceola frequent. I am unable to decide if this Trogon is Hapaloderma narina or //. con-stantice. "No. 1957. Passer diffusus, A. Smith, $. The common species. " No. 1958. Hapaloderma narina, Vieill., 3 . Not unfrequent. "No. 1959. Centropus senegalensis, 3 $. Quills and secondaries without any dark tips, uniform brown. " No. 1960. Andropadus, 3 . The commonest forest bird, the voice of which is everywhere and always heard." Tbe Secretary exhibited comparative drawings of the heads of two North-American Swans (Cygnus americanus and C. buccinator), of which Mr. F. E. Blaauw, C.M.Z.S., had lately received living examples in Holland, and read the following extract from a letter received from Mr. Blaauw on this subject:- " I send you a water-colour drawing of the head of the Cygnus americanus which I received in a hviug specimen some weeks ago. For comparison I have had the head of C. buccinator drawn on the same paper. You will notice that the yellow part of the bill of C. americanus is of a pale yellow, more or less mixed with blackish spots; moreover, the line formed by the feathers of the front in C. americanus goes in a nearly straight line from the eye to the frontal base of the bill, whilst in C. buccinator this line first goes a little forward, before it bends upward to the front. In both birds the edge_ of the mandibles, especially of the lower one, near the corner of the mouth, is of a pinkish colour. The line formed by bill and head is also quite different in C. americanus. O n the whole, C. americanus is of a slighter build than C. buccinator. The plumage in m y C. americanus is of a pure white, without addition of yellow or greyish feathers on the head." The following extracts were read from a letter addressed to the Secretary by Mr. R. Trimen, F.Z.S. (dated South-African Museum, Capetown, June 25, 1894), with reference to Dr. A. G. Butler's remarks on his paper on Butterflies from Manica:- " With reference to Dr. Butler's remarks (P. Z. S. 1894, p. 14, |