METEOEOLOGY AND GEOLOGY 



309 



Notes on Hock Specimens from Unyoro. 

 By Mk. G. T. Prior, Natural History Museum. 



The si^ecimens from Un vf ro in Sir Harry Johnston's collection of rocks from the Uganda 

 Protectorate consist mainly of a series of ferruginous shales, varying in colour from pale brown 

 and purple to deep brick-red, and sometimes banded with black lyddites and a few softer and 

 more schistose phyllites. 



These rocks laresent striking similarities with Hatch's " Hospital Hill " series of the 

 Southern Transvaal, and also with rocks from the Ingwenya Berg, Swaziland. The " Hospital 

 Hill" series of ferruginous shales occurs in the neighbourhood of Johannesburg as part of 

 Hatch's Cape system with the Witwatersrand auriferous quartz-conglomerates immediately 

 above it. {^(^iiarterhj Jdurnal Geoloqlcal Society, iv. 189H, ff. 73, 99.] 



The Swaziland ferruginous shales, or " argillites," which probably belong to the same 

 series, occur in association with gold-bearing serpentine and talcose schists. [Geoloffical 

 Mafjazine, vi. 1899, pp. 105-111 : the rocks marked T. B. in Profes.sor Rupert Jones's list.] 



Amongst the rocks from Unyoro is a specimen of quartz which certainly presents some 

 points of resemblance with that of the auriferous Banket formation of the Transvaal. Although, 

 in the absence of their field-relations, it is not advisable to lay too much stress upon the 

 resemblance of these rocks from Unyoro with the "Hospital Hill" series o£ the Transvaal, 

 yet the similarity of the rocks is sufficiently striking to suggest the idea that if gold u to be 

 found ill the Ufjanda Protectorate, Unijoro is the most likelij district in which to looli for it. 



Bari District, Nile Province. 



Locality. 



Mount Beliiiian Gneiss. 



Jibalokaju, north-west of liajaf, left bank of Nile 

 Mount Lado, left bank of Nile. 

 Twelve miles north of Bedclen, light bank of Nile 

 Near Bedden 



and basalt. 



ToRO. 



Near noith-east slojies of Buwcnzoii 



. ^lica-schist, hornblende-schist, and 

 diorite ? 

 Ruwenzori, south-east flanks, 4,.",00 feet to 13,000 feet Fibrolite. 



Gneiss with chlorite. 



Gneiss 



Granite. 



Tut}-. 



„ pegmatite. 



Gneiss with chldrite. 



Gneiss. 

 Epidiorite. 



Mica schi.st. 



Quartz. 

 Epidioi'ite. 



