MINERALOGY: G. P. MERRILL 
307 
tity as to be available for chemical analysis, apparently this is the best 
that can be done. Attention may, however, be called to the fact that 
phosphorous in the form of apatite has thus far been definitely recog- 
nized in meteorites only by Berwerth,^ although a small amount of phos- 
phorous is almost invariably reported either as P or P2O5 from the 
soluble (silicate) portion of the stony meteorites. It would seem prob- 
able, therefore, that this soluble salt is not in the form of apatite but 
that rather it owes its presence to the monticellite-like mineral which is 
now relegated doubtfully to the species francolite. 
On the assumption that the doubtfully monticellite-like mineral re- 
ferred to by the various workers is in all cases to be relegated to the 
same species, it has now been recognized in the stones listed below. 
Alfianello, Chantonnay, Lancon, Rich Mountain, 
Aumale, Dhurmsala, Mezo Madaras, Saint Christophe, 
Barbotan, Felix, Mocs, Saint Michel, 
Berlanguillas, Knyahinya, Pultusk, Salles. 
OLDHAMITE AS A METEORIC CONSTITUENT 
The presence of the calcium sulphide oldhamite in a meteorite was 
first made known by Maskelyne who found it in granules macroscopically 
developed in the Busti stone.^ He also noted its probable presence in 
that of Bishopville, and suggested an even wider distribution. Since 
Maskelyne's writing but few new occurrences have been noted, though 
its probable presence has been more than once suggested. The present 
writer found a lime salt soluble in water in the Morristown meteorite 
which he surmised might be gypsum, resulting from the alteration of 
the sulphide.^° He also found abundant chemical evidence of its one- 
time presence in the stone of Cullison,^^ and was able to verify Lacroix's 
microscopic determination of its presence in the Indarch stone.^^ Borg- 
strom has also shown its presence in the stone from Hvittis,^^ Cohen 
in that of St. Marks,^^ and Tassin by chemical tests has pointed out 
its probable occurrence in that of Allegan. 
These facts, considered in connection with my work on the minor 
constituents of meteorites, have led me to make a most careful search 
for the mineral, but with the exception of that of Indarch none of the 
stones examined have yielded absolute ocular proof of its occurrence. 
The known solubility of the mineral in water has, however, afforded 
opportunity for a safe presumption regarding its presence or absence. 
Quantities of a gram or more from each of the stones listed below 
were finely pulverized and boiled for an hour or so in distilled water, 
the solutions then filtered and tested for Hme with ammonium oxalate. 
