528 General Notes. ' [June, 



9.14, FejOa 2.59, H.O 2.41, CO.. .48 = 99.06. Professor B. K. 



Emerson has examined microscopically the rock forming a dyke 

 which penetrates the bed of zinc ore at Franklin, N. J., and finds 

 that it is a micaceous diabase, composed principally of labradorite, 

 augite, biotite, and apatite, and containing, as foreign constitu- 

 ents, franklinite, zincite, willemite, and calcite. The green 



nickle ore from New Caledonia, exhibited in quantity at the 

 Centennial Exhibition, and known by the name of Noumcite or 

 Garnicritc, is an amorphous hydrous silicate of magnesia, contain- 

 ing more or less admixture of oxide of nickle. It has been con- 

 sidered as allied to Genthite, though probably a mixture. Ber- 

 trand considers that its optical character is that of a uniaxial 



substance. Professor Shepard withdraws the species Glauba- 



patite, a name which he had given to a supposed soda-bearing 

 guano. The soda was due to the damaged state of the cargo of 

 the vessel in which the guano was shipped. 



GEOGRAPHY AND TRAVELS. 1 



The Congo. — The treaty made by M. Savorgnan de Brazza 

 with the native chiefs at Stanley Pool, is published in the Proceed- 

 ings of the Royal Geographical Society for April. It is dated 

 October 3, 1880, and cedes" the territory between the rivers Jue 

 and Impila to France for the establishment of a station. Mr. 

 Stanley on arriving at Stanley Pool was not allowed to establish 

 a depot or proceed any further in consequence of this agreement, 

 which is considered by the native chief Makoko, as binding hiffl 

 not to receive any Europeans but Frenchmen. 



Mr. Stanley on his way up the Congo to the Pool, passed from 

 Isangila to Manyanga entirely by river, but after that, he was 

 obliged to make a road seven miles long, past the Ntombo Ma- 

 taka Falls where he was again able to take to the river. 



The French missionary Pere Augouard has also visited Stanley 

 Pool, and on his way discovered a river over eighty feet broad, 

 named the Eluala, which is not marked on Stanley's map. 



The natives have also ceded a tract of land on the Congo at 

 Manyanga, to the Belgian expedition for a depot. 



Just below the boundary of this tract, the Baptist mission has 

 chosen a site and are building a house. On each side of the river 

 there are many native towns within a short distance of this spot. 



Lake Nyassa — The headquarters of the 

 lake, has been removed from Livingstonia at Cape Maclear to 

 Bandawe at Misangi Point, S. lat. 1 1° 56' E. long. 34° 6', a more 

 healthy and central port. The new road from Nyassa to Tangan- 

 yika is to be begun soon. A new steamer is to be sent out oy 

 the London Missionary Society to Quillimane and thence t 

 the north end of Nyassa and over the new road when finished, 

 1 Edited by Ellis H. Yarnall, Philadelphia. 



