The petroleum is evaporated in a chamber, a-id after having pissed through a ring of small tub. s. is burnt as a gas without a wick, and produces an inverted flima. The pr'tduets of combustion s-rve for theh-ating of a system of baffle plates, by means of which the uir for conbmtuvi is well heated befor- reaching the burner. Tne flame is perfee'ly white, and the rj«ttl ition ot the oil. which fl >ws from a reservoir above, » easily effect -d by a needle valve, which at th»sime time secure* the entrance .of clean oil into th« limp. The heating of the ecap 3 orating chi no r i* elfio'oS by a smill fliiue, which is fe.l by t etroleum or by s >irin, and is automatically extinguished as soon as the evaporation of the oil has cimmenool. anl" the lamp is in working or leri r P lot »m-jtrib trials sho v tint the la-np ha< a high illuniu -1 ating value per unit of oil c mume I. ALBINO AHIMAIS IN THE OID MINEB. In connection with the recent resumption o mining along the famoui ' blue lead,' near Bang r, Cal., a mott pecu'hr discovery was made. Among the mines now being worked is the old Potter mine, whic'i has been rechris tened the Bishop mine. a f ter its present owner. When this mine was fir.«t reop jned, a young man entered a rirv slope leading to a s -cond s'-aft, the existence ot which wis u iknown, owing to a thick growth of brush .andftejJW about, it, and had nearly reached the shaft when he noticed a large number of flies buzzing about nim in a very trjublesome manner. He mid» several sl«ps at 'ham, an! accidentally caug'it one. On examining it by the ai 1 of hi* Unter j he was nea-ly s'artled : nfco letting it e'Cip> by renon of its uncanny appia-aooe. It was absolutely white, with t) e exception of its eyes, which were r id <iad unusually and prominant. Scarc-'ly hj id the explorer recovered from his surprise at, the white flies, when h> was startled by the whir.in» sound of in ■!.•- snake's tail. L'oking earifully a'ound, he s»w the eyes of the rep i e, and th e» a rock in the direc ion of them. 