548 SCIENTIFIC RECORD FOR 1S82. 



Phytocollite. — A black gelatinous hydrocarbon, closely related to 

 dopplerite, first described by T. Cooper, later by H. C. Lewis, who at- 

 tached the above name (from ^urov, xoUa, or plant-jcJIy). It was found 

 in a stratum of m uck under a peat-bed at Scranton, Pa. When first ob- 

 tained it was jelly-like in consistency, but on exposure it became 

 tougher and elastic, like India rubber, and when quite dry it was hard 

 and brittle ; in the latter condition it burns with a yellow flame. 



Plinthite. — A name given by Heddle to a substance of a deep red color 

 and greasy or dull luster, forming layers in amygdaloid, from Quiraing, in 

 Skye. It is an impure hydrous ferruginous silicate of alumina. There 

 is no excuse for attaching a new name in such a case. 



Rezbanyite. — According to Frenzel, a new sulpho-bismuthite of lead 

 from Rezbanya, Hungary. It is a massive mineral, of metallic luster 

 and light lead-gray color. It occurs intimately mixed with chalcopyrite 

 and calcite, also imbedded in quartz. 



Bosterite. — A variety of beryl, occurring in short prismatic to tabular, 

 doubly-terminated crystals of a pale rose-red color. It differs somewhat 

 from the ordinary kinds in optical characters and in composition, but 

 is not to be regarded as distinct. From the island of Elba ; described 

 by G-. Grattarola. 



Sclmeehergite. — A mineral of doubtful relations, occurring in transpar- 

 ent isometric crystals of vitreous to adamantine luster and honey-yellow 

 color. It contains principally lime and antimony, but its exact chemi- 

 cal comi^osition is unknown. Described by A.Brezina; from Schneeberg, 

 Tyrol. 



Schuchardtite. — A name given by Schrauf to the so-called chrysopra- 

 serde, from Glaserndorf, Silesia. 



Semseyite. — Briefly described by Krenner as occurring in gray metal- 

 lic crystals at Felsobanya, Hungary. It contains sulphur, antimony, 

 and lead, and is said to be related to plagiouite. 



Serpierite. — Occurs in minute tabular crystals, often grouped into 

 tufted forms. The color is greenish blue. The crystalline form has 

 been described by Des Cloizeaux, but its exact chemical composition 

 is unknown. Damour states it to be a basic sulphate of copper and zinc. 

 It is from the ancient mines, recently re-opened, at Laurium, Greece. 



Siderophyllite. — A black mica from near Pike's Peak, Colo., described 

 by H. C. Lewis. It is near biotite, but is remarkable as containing 25J 

 per cent, of iron protoxide, and almost no magnesia. 



SiliciopMte. — A heterogeneous substance, high in silica, produced by 

 the continued alteration of serpentine (derived from chrysolite) near 

 Budweis, Bohemia. The name was given by Schrauf. It is not a min- 

 eral. 



Steenstnipine. — A mineral described by Lorenzen, from the sodalite 

 syenite of Greenland. It occurs massive and indistinctly crystal- 

 lized, perhaps in rhombohedrons, of a brown color; it is associated 

 with lepidolite and segirite. Chemically contains chiefly silica, the oxides 



