The following new localities for these t~ree rare minerals have lately come under my notice.

I was some time ago presented by George Moodie, Esq., formerly Surveyor-General to the Transvaal Government, with a specimen which he obtained himself from the lead mines at Marico Zeerut, near Potsehefstroom, in the Transvaal.

This specimen was part of a small druse which is lined with crystals in a corded arrangement. These crystals appear to me to be zinc carbonate.

Superimposed thereon there are crystals of both linarite and of caledonite, and also minute crystals of an emerald-green mineral which is unknown to me.

There being but one specimen, I do not desire to remove any of the last for testing.