Geology and Natural History. 229 
my desoripsicn. on p. 6 of my report on the Vertebrata of the 
Eocene of New Mexico 
13. Shepherd's Pipe of the feindeer era.—An instrument made 
of the bones of birds placed yo Sac as in the shepherd’s Pipe, 
which it is supposed was used as a musical instrument, is 
goumned by M. Piette as having ate found B, a deposit of the 
eae 2 era (Stone Age). —Les Mo ndes, Jan, 
Lead vein in Ne wburyport, Mass. "The « vein of lead ore 
de discovered intersecting the gneiss of Newburyport has, 
according to Professor R. H. Richards, a lead-bearing ba nd 
against its north wall, which averages a foot in width but widens 
in one shaft 22 feet deep to six feet. ith the galena there is a 
little chalcopyrite and tetrahedrite. The rest of the vein is a 
rusty crystalline rock free from mica, whose precise nature is not 
yet determined. The lead-bearing band is from one-third to one- 
half galena, A ton (2240 Ibs.) of the crude ingot lead obtained 
from the ore yielded 74 ounces of silver and 341 grains of gold.— 
Proe. Boston Soc. Nat. Hist., xvii, 2 
15. Record fe prong te Literate —An Annual of fe title is 
to be commenced the coming s y W. Wuiraker of the 
Geological ate Office | (Je nye st., London, SW). “The vol- 
ume will contain short abstracts or notices of Pa ers, Books, 
Maps, ete., published during the year 1874, in the departments of 
eology, Paleontology and oepeia h It will include 200 to 
300 pages and be sold for 10s. 6d. isrin an Annual Record is 
greatly needed. Sihscripaune are solici 
16. Composition of the native alloy oe Gold and Silver in the 
Comstock Lode, Nev a MELVILLE gickeeon , of San Fran- 
cisco, in a communication to the Microscopic al Society in April, 
1874, describes the pale alee alloy from the Comstock lode as 
9Securring in similar form and composition throughout the whole 
length of the lode and ries the croppings down to the bottom of 
the deepest workin oe It is found occasionally in coarse pieces, 
but in general is finely disseminated and intimately mixed with 
the silver ore. It exhibits imperfect octahedral crystals and is 
found also in aborescent filiform masses. ar ‘ied 3; cific 
gravity 12°5; after melting, 13°5 to 13° 7 Color white, with a 
rmin 
17, ‘Minerale pioal Note ; ; by Atserr R. Leeps, Prof. of ‘Chem- 
istry, Stevens Institute. -A magnesia-iron Tremolite, not asbesti- 
fineralogy, 5th edition. ssl county in a dark-colored serpentine 
rock, i bie aded masses sometimes exceeding 1 mm. in thickness 
and 1 em. in breadth in their vies part, and then thinning into 
fine fibers which lose themselves in the rock. These blades, with 
