Resume of Recent Scientific Publications. 475 



Eedlich, K. A., and v. Dessauer, A. " Ein Beitrag zur Kenntniss 

 des Umtali-Districtes (Manica, Mashonaland)." Oesterr. Zeits. 

 fiir Berg. u. Hiittenw., xlv., Jahrg., No. 1. Wien, 1897. 



The authors describe steeply dipping Archaean schists 

 ( Qrschief er) , which may represent the Swazi schists as running 

 with east and west strikes for sixty miles from the Portuguese 

 territory to the Sabi Eiver. These rocks are ten miles wide in 

 the east, but westwards they give place to granite. Basic 

 igneous rocks run parallel with the schists, and both are cut 

 through by younger greenstones. 



The authors describe the mineral veins as : (1) Veins in 

 talc-schists, containing crocoisite, galena, blende, &c, while 

 some contain gold ; (2) veins at the contact of granite and the 

 schists — one of these has yielded in places 40 oz. gold per ton ; 

 (3) veins in basic rocks. 



One of the authors (Eedlich) gives an account of the rocks of 

 the district from specimens collected by the other, as well as a 

 crystallographic description of the crocoisite found at Penhalonga. 

 Crystals of this mineral are found sometimes on talc-schist, 

 sometimes on quartzite, covering the whole surface of the rock. 



The general geology of the district is illustrated by a geological 

 sketch - map and three sections. The authors consider the 

 Umtali Goldfields likely to have a favourable future. 



GEOGKAPHY. 



(1897.) 



Baden-Powell, E. S. S. "The Matabele Campaign, 1896." xvi 

 + 500 pp. London. 



Bertrand, Alf. " Notes resumees sur un voyage d'exploration au 

 pays des Ba-Eotse." Mem. Soc. Geog. Geneve, xxxvi., pp. 41-61. 



Brincker, P. H. " Beschreibung der 'Eumbo' des Hauptlings der 

 ovakuanjama in Nord-Ovamboland " Globus, lxxi., pp. 94, 95. 



Bryce, J. " Impressions of South Africa." xxvi + 604 pp. London. 



