“…Many additional determinations are given by Hawley and Rimsaite (1953) from Canadian ore deposits and by Schneiderhohn and Moritz (1931) for sulfides of the Merensky Reef of the Bush veld complex, South Africa; the maximum contents given are listed in table 9. For comparison, recent data by Morris, Hill, and Smith (1963) are given. These were made by neutronactivation analysis; all others are spectrographic analyses.…”