^{page 163 note *} Q. J. G. Soc., vol. xiii. p. 25.

^{page 163 note †} Q. J. G. Soc., vol. xv. p. 365.

^{page 164 note *} Q. J. G. Soc., vol. xvi. p. 221.

^{page 164 note †} Q. J. G. Soc., vol. xvi. p. 232.

^{page 164 note ‡} Q. J. G. Soc., vol. xvii. p. 99.

^{page 164 note §} Min. Mag., vol. iv. p. 233 et seq.

^{page 164 note ¶} Min. Mag., vol. v. pp. 136 to 144.

^{page 164 note **} Min. Mag., vol. v. p. 144 and p. 295 et seq.

^{page 165 note *} Min. Mag., vol. v. p. 274.

^{page 165 note †} Mineralog. Mag., vol. v. p. 294.

^{page 165 note ‡} Mineralog. Mag., vol. v. p. 295.

^{page 165 note §} Q. J. G. Soc., vol. xxxix. p. 409.

^{page 165 note ¶} Q. J. G. Soc., vol. xxxix. p. 420.

^{page 166 note *} Notes on some hornblende-bearing rocks from Inchnadamff. J. J. H. Teall, Geol. Mag., 1886, p. 346.

^{page 166 note †} “Report on the Recent Work of the Geological Survey in the North-West Highlands of Scotland, based on the Field Notes and Maps of Messrs B. N. Peach; J. Horne; W. Gunn; C. T. Clough; L. Hinxman and H. M. Cadell,” Q. J. G. Soc., xliv. p. 378.

^{page 167 note *} The description of the physical relations of this intrusive mass may be more readily followed by referring to Sheet 101 (one-inch) of the Geological Survey Map of Scotland.

^{page 174 note *} Proved by the uranium-acetate test.

^{page 175 note *} Particulars as to the means by which wollastonite was identified are given because they do not appear to be generally employed by petrologists. It is often much easier to identify a mineral by studying the form and optical characters of the small fragments obtained by crushing than by examining thin sections. A description of the ordinary rock-forming minerals from this point of view would be of great service, and anyone who will undertake the work will confer a benefit on petrologists.

^{page 176 note *} See “On Nepheline Rocks in Brazil,” Quart. Jour. Geol. Soc., vol. xlvii. (1891), p. 251Google Scholar.

^{page 178 note *} Not estimated.

^{page 178 note †} Total iron reckoned as ferric oxide.

^{page 178 note ‡} Silica and insoluble residue.