155 
TAB. CCLXXVII. 
TITANIUM oxygenizatum, var. ferriferum. 
Menachanite. Ferriferous Oxide of Titanium. 
Class 3. Metals. Order 1. Homogeneous. 
Gen. 20. Titanium. Spec. 1. Oxygenizatum. 
Var. F¥erriferous. 
Syn. Menachanite. Kirw. 2.326. Gregor. 
Nigrine. Karsten, 56. 
Titane oxidé ferrifére. Hauy, 4. 305. 
We are indebted for the first discovery of this curious 
substance to the penetration of our. ingenious friend the 
Rey. Mr. Gregor, who examined it in the year 1781, and 
discovered that besides Iron, it contained a new metal, 
which he called Menachine, but which appears to have 
been the same with what has since been discovered in the 
Red Schoerl by Klaproth, and is named Titanium. This 
name has obtained most general use, on account of the 
great authority of the chemist by whom it was given, al- 
though Menachine might with much propriety have been 
preferred, as being originally given to the substance by Mr. 
Gregor; he being undoubtedly the first who named it, as 
well as the first discoverer of it. The term Menachanite 
has been applied to the substance here figured from the 
name of the place where it was first found, the valley of 
Menachan, in Cornwall. The same substance is said to 
have been since met with in the Island of Providence and 
in New Holland. It bears some resemblance to gunpowder, 
but has rather more the appearance of grains of Plumbago. 
The grains do not assume any particular shape, some being 
