On some Paleolithic Implements found in Somaliland. 19 



(15) The prominences must be fed from the outer parts of the 

 solar atmosphere, since their spectra show lines which are absent 

 from the spectrum of the chromosphere. 



(16) The absence of the Fraunhofer lines from the integrated 

 spectra of the solar surroundings and uneclipsed photosphere shortly 

 after totality need not necessarily imply the existence of a reversing 

 layer. 



(17) The spectrum of the base of the sun's atmosphere, as recorded 

 by the prismatic camera, contains only a small number of lines as 

 compared with the Fraunhofer spectrum. Some of the strongest 

 bright lines in the spectrum of the chromosphere are not represented 

 by dark lines in the Fraunhofer spectrum, and some of the most 

 intense Fraunhofer lines were not seen bright in the spectrum of the 

 chromosphere. The so-called " reversing layer " is therefore incom- 

 petent to produce the Fraunhofer spectrum by its absorption. 



(18) Some of the Fraunhofer lines are produced by absorption 

 taking place in the chromosphere, while others are produced by 

 absorption at higher levels. 



(19) The eclipse work strengthens the view that chemical sub- 

 stances are dissociated at solar temperatures. 



" On some Palaeolithic Implements found in Somaliland by 

 Mr. H. W. Seton-Karr." By Sir JOHN EVANS, K.C.B., 

 D.C.L., Treas. and V.P.R.S. Received April 27, Read 

 April 30, 1896. 



Although some account of his recent discoveries in Somaliland 

 (tropical Africa) has already been given to the Anthropological 

 Institute by Mr. Seton-Karr, and has been published in their Journal,* 

 these discoveries seem to me to have so wide an interest, and such an 

 important bearing on the question of the originaJ home of the human 

 race, that I venture to call the attention of this Society to them. 



In the course of more than one visit to Somaliland for sporting 

 purposes, Mr. Seton-Karr noticed, and brought home for examination, 

 a number of worked flints, mostly of no great size, which he laid 

 before the Anthropological Section of the British Association, at the 

 meeting last year at Ipswich. f Although many of these specimens 

 were broad flat flakes trimmed along the edges so as to be of the 

 "le Moustier type" of M. Gabriel de Mortillet, and although the 

 general fades of the collection was suggestive of the implements 

 being of palaeolithic age, they did not afford sufficient evidence to 

 enable a satisfactory judgment to be formed whether they undoubtedly 

 belonged to the palaeolithic period. 



* Vol. 25, p. 271. 



f Eeport, 1895, p. 824. 



C 2 



