. The Nepheline and Associated Alkali Syenites of Eastern Ontario . nal local details if required. Distribution. All the occurrences of nepheline syenite in this region, with theexception of those in the township of Methuen, are found in a com-paratively narrow belt of country which has a general north-easterly Adams, F. D.—On the occurrence of a larg-e area of Nepheline SyeniteIn the township of Dungrannon, Ont.—Amer. Jour, of Science; vol. xlvlll,July 1894. Harrington, B. J.—On Nepheline, Sodalite and Orthoclase from the Nephe-li»ne Syenite of Dnnpannon, liastings Tounty. Ont.—ditto. Ann. Re
. The Nepheline and Associated Alkali Syenites of Eastern Ontario . nal local details if required. Distribution. All the occurrences of nepheline syenite in this region, with theexception of those in the township of Methuen, are found in a com-paratively narrow belt of country which has a general north-easterly Adams, F. D.—On the occurrence of a larg-e area of Nepheline SyeniteIn the township of Dungrannon, Ont.—Amer. Jour, of Science; vol. xlvlll,July 1894. Harrington, B. J.—On Nepheline, Sodalite and Orthoclase from the Nephe-li»ne Syenite of Dnnpannon, liastings Tounty. Ont.—ditto. Ann. Rep. Oeol. Surv. Can. Vol. ix. 1896 p. 116. A. •Summary Reports. Geol. Surv. Can. 1896, p. 53; 1897 pp. 48-56; 1898 ; 1899 pp. 130-131; 1900 pp. 127-128; 1901 p. 148; 1903 pp. 142-143; 1904pp. 190-193. ?Ann. Rep. Bur. of Mines Ont., Vol. vii. Part III, 1898 pp. 207-238;Ann. Rep. Bur. of Mines Ont., Vol. vlii. Part II, 1899. pp. 205-240. Amer. Geol. Nov. 1899 Vol. xxlv., pp. 276-282; Jour. Can. Min. Mat. 1902 pp. 233-255. DEPARTMENT OF MINES. Geological MapCENTRAL ONTARIO CORUNnUM-BEARING ROCKS L [ADAMS A BARLOW] ALKALI SYENITES OF EASTERN ONTARIO S course, as shown on the accompanying map. The most westerly occurr-ence discovered is that in the township of Lutterworth, where acorundum-bearing syenite has been found on lot 12, concession IV. ofthis township. The next occurrences are those which are situated inthe townships of Glamorgan and Monmouth, in which townships sometwenty separate areas of the rock have been mapped and studied. Thelargest and in many respects the most noteworthy of these is a wide beltcf nepheline syenite which surrounds an occurrence of granite inter-vening between this rock and the limestone which forms the countryrock of the central portion of the township of Monmouth. Here thenepheline syenite and the granite are clearly seen to be differentiationproduct? of a common magma. The other occurrences in these townshipsare smaller and l
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