158 Scientific Intelligence. 



12. Lake Chicago submergence. 



13. Emergence of plain, covered by Lake Chicago. 



14. Partial resubmergence of plain, covered by Lake Chicago. 



15. The present stage of Lake Michigan." h. s. w. 



3. A new fossil Pseudoscorpion. — Prof. Hans Bruno Geinitz 

 of Dresden has sent out a preliminary notice of a unique fossil 

 pseudoscorpion, named by him Kreischeria wiedei Gein. It was 

 recently discovered in the lower layers of the Sigillaria zone in 

 the " Morgenstern " mine, at Reinsclorf near Zwickau. A full 

 description is promised in the next number of the Zeitschrift der 

 deutschen geologischen G esellschaft. The length of the body, 

 without jaws, feelers or legs, is 50 millimeters, and it is about 

 28 mm wide at its most expanded part. The specimen will be 

 deposited in the K. Mineralogisch. Museum in Dresden. 



h. s. w. 



4. Catcdogus Mammalium tarn viventiwn quarrt fossilium; a 

 Dr. E.-L. Tkouessart, Nova Editio (prima completa), Berlin, 

 1897 (R. Friedlander & Sohn). — Fasciculus II of this work, pp. 

 217-452, has recently been issued. It contains the Carnivora, 

 Pinnipedia, Rodentia I. Protrogomorpha et Sciuromorpha. . 



h. s. w. 



5. Brief Notices of some recently described Minerals. — Leonite. 

 A new sulphate described by Tenne from the salt deposits of 

 Leopoldshall; it corresponds to bloedite but contains potassium 

 instead of sodium. It crystallizes in thick tabular crystals belong- 

 ing to the monoclinic system ; color pale yellowish, reddish or 

 gray. Analysis led to the formula MgS0 4 . K 2 S0 4 + 4 aq. 

 Named after Director Leo Strippelmann. — Zs. deutsch. geol. Gesell- 

 schaft, xlviii, 632, 1896. 



QtTiKOGiTE. A sulphide of lead and antimony described by F. 

 Navarro from the San Andres mines, Georgina, Sierra Almagrera, 

 Province of Palmeria, Spain. It resembles galena but crystallizes 

 in the tetragonal system, with a hardness of 3 and a specific 

 gravity of 7*23; color gray on the surface but luster metallic on 

 freshly fractured surfaces. An analysis gave : 



S 17'51, Sb 9-69, Pb 63"89, Fe 6'30. 



If the iron sulphide is to be regarded as foreign, the mineral con- 

 sists of PbS and Sb 2 S 3 in the ratio of 23:2. — Anal. jSoc. JEspan. y 

 xxiv, 1896, in Bull. Soc. 31m., xx, 163, 1897. 



Dicksbergite. A name given by Igelstrom to a supposed new 

 mineral occurring with cyanite at Dicksberg in the Ransat parish, 

 Wermland, Sweden. It has since been shown by Weibull and 

 Upmark to be rutile. — Geol. Mr. Fork., xviii, 231, 523, 1896. 



Maltesite. A variety of andalusite resembling chiastolite 

 from eastern Finland, described by Sederholm. It occurs in 

 mica schist in crystals of remarkable size, varying from 1*5 to 5 

 centimeters across. — Geol. For. Fork., xix. 



Mangandalusite. Backstrom has given this name to a variety 

 of andalusite occurring in the muscovite-quartzite of the Vestana 



