The Snap of Ncalt;!*Fn Kevodn are several deposits of mineral soap. One trf Onwo lias boon worked for thrco or four yenro. Tho soap is sometimes made up info cukes os it umr£ from tbo mine. but usually it is totted down by admixture with various ther soaps. In Dakota and Wyoming ; are alno d.-jK^its of natural soap. In re-trions whore soda, borax nnd mineral oilsabound it iaonlrneotwsary to bring theseingredient^ together and a ooap mine is the result. Hot springs assist materially in uniting and coucentratiug the tuato-rial* provided by nature. The amp found alxut hot springs is, therefore, generally harder nud more perfect than that produce*I in tlio dry way in and about the basins of extinct hikes.Tl» waters of Owens and Mono lakes are ko thoroughly saturated with borax ami soda in solution that the addition of 1 any oleaginous matter produces soap. 1 The waters of Mono la ke produce myriads of gruhs (which uftera time becomeflics* | which are washed ashore, and in some places form benches u foot or two in depth. The oily matter contained in the grubs or Hies, uniting with the alkali in too water of the lake, forms a deposit of | soap mi Inch or two in thickness each year. Thus, in tho course of ages, a de-(Mwit of natural soup of great depth 1ms been built upon the east sideof the alkali lakes, where the worms are stranded— ' j»revailing winds being from the west. These particular grubs are the only living tilings found in the wafers of Mono aud Owens lakes.At certaiu seasons an insectivorous i duck, calksl the spoonbill, frequents these lukes, nnd. feeding upon the aquatic flies and grubs, becomes bo fat it can hardly fly. Hunters kill these spoonbill ducks for their oil, as the grub on which they feed imparts to them a fishy taste so strong that they cannot l»o eaten except by Indians, who eat both worms and ducks. Ducks killed by hunters and last aro sometimes found in the waters of the l.ihe. All tho feathers are eaten if the fowl by the alkaline solution, and the layer of fat In-neath tho skin, an inch in thickness, is found to be changed to snap, hard as the beat castiloand beau-tifulh white.—Virginia City Enterprise.