Intelligence and Miscellaneous Articles. 389 



which is covered with perpetual snow. The elevation of this moun- 

 tain can scarcely be less than about 20,000 feet, and from other 

 sources we learn that it is crossed by the road to the country of Mono- 

 Moezi. In the native languages of this part of Africa " Moezi " 

 means " moon ; " so that it is not unreasonable to conclude, as Dr. 

 Beke does, that Mount Kilimandjaro forms a portion of the " Moun- 

 tains of the Moon," in which Ptolemy places the sources of the Nile, 

 and the snows of which he describes as being received into the lakes 

 of that river. 



It is by proceeding into the interior westwards from Mombas that 

 Dr. Bialloblotzky, whose exploratory journey into Eastern Africa has 

 on several occasions been noticed in this Journal, expects to reach 

 the sources of the Nile ; and the discovery of this snowy mountain 

 and high table-land so near the coast argues favourably for the suc- 

 cess of his undertaking. According to the last letters received from 

 him, he arrived on January 3rd at Muscat, whither he had gone on 

 by steamer from Aden and Maculla ; and he was there looking for a 

 native vessel to take him across to Mombas or Zanzibar. 



ON MR. STRUVE S MINE VENTILATOR. BY J. RICHARDSON, C.E. 



This machine has now been three weeks in full operation at the 

 Eaglesbush Colliery, near Neath, and the unequivocal success which 

 has attended it is a matter of sincere congratulation, not only to the 

 talented inventor, but to all engaged in raining. Its beautiful simpli- 

 city of design, its easy adaptation to the peculiar circumstances of any 

 mine, and its certainty of effect, are its chief characteristics ; whilst the 

 comparatively small amount of capital required in its construction, and 

 the slight annual expense incurred by it, are strong recommendations 

 for its general adoption. It is well known, that in the best-managed 

 collieries recourse is had to the furnace as a means of ventilation — 

 not because it is perfect, but as the best system known. Without 

 entering into a description of this mode, with which most of your 

 readers are familiar, it will perhaps be suflScient to mention some of 

 the most serious objections to it, and see how far they are remedied 

 or avoided by this invention. 



After describing the imperfections and evils of the modes of ven- 

 tilation by furnaces, Mr. Richardson continues : — By Mr. Struve's 

 machine all the advantages resulting from the use of the furnace are 

 retained and augmented, additional benefits are secured, the evils 

 complained of are removed, and are not replaced by others ; at least 

 such is the opinion of the writer, who devoted a day to the careful 

 examination of it and its effects, both above and underground, and 

 who is uninfluenced by any partiality arising from pecuniary inter- 

 ests or connexion with either the inventor or the proprietors of the 

 colliery. 



By referring to the annexed plans, section, and description of the 

 machine now in operation at Eaglesbush, the reader will be able 



