Appendix

(a) Page 19. Bayley, W. S., Iron mines and mining in New Jersey; New Jersey Geol. Survey Final Rept., ser. 7, 1910. By an oversight this work was omitted from the bibliography. It contains several references to the magnetite mines at Franklin, especially on pages 226, 227, and 255.

(b) Page 31. Holmes, R. J., X-ray study of arsenides and antimonides of nickel and cobalt (abstract): American Mineralogist, vol. 20, page 198, 1935. The author finds that "chloanthite" from Franklin gives an X-ray powder pattern for rammelsbergite. It is not shown, however, that chloanthite may not also be present.

(c) Page 48. Ramdohr, Paul, Neue Beobachtungen uber die Verwendbarkeit opaker Erze als "geologische Thermometer"; Zeitschr. prakt. Geologie, Band 39, pages 74-75, 1931. Franklinite is shown in this paper to be probably not homogeneous. The investigation is incomplete.

(d) Page 65. Peacock, M. A., On pectolite; Zeitschr. Kristallographie, A, Band 90, pages 97-111, 1935. In this paper there is a new drawing of the figure of pectolite in triclinic interpretation.


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