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NATURAL HISTORY NOTES. 
determine ; on decayed wood from Sutton.— Spicaria eleyans , Harz, on 
decayed wood, amongst moss, from the same place ; this agreed with 
Saccardo’s figure (Fung. Ital. 895), and with the smaller specimens in 
Corda’s leones, ii., 74. — Oospora candidula, Sacc. (Fung. Ital. 880), 
from Sutton.— Peziza asperior, Nyl. (determined by Mr. W. Phillips), on a 
damp spot in a gravel pit between Hampton and Berkswell. This is 
mentioned in Mycographia (fig. 51), as occurring in Lapland, Finland, 
and Austria.— Pliyllosticta cytisella, on laburnum leaves, from Brad- 
nock’s Marsh.—I may also mention that I have found the rare Peziza 
Dalmeniensis , Cooke, again this year in plenty, in the old locality at 
Sutton.—W. B. Grove, B.A. 
A New Yorticella. —Dr. A. C. Stokes describes, in the “ American 
Naturalist” for August last, a new Yorticella, found sparingly on the 
leaflets of Ceratophyllum, in a pond in New Jersey. It is distinguished 
from all other Yorticellge by its curious cuticular prominences and the 
presence of two contractile vesicles. Hitherto no member of the genus 
has been observed with more than one pulsating vacuole. The 
description is annexed : — Yorticella Lockwoodii. —Body when expanded 
broadly campanulate, not conspicuously changeable in form, the length 
about equalling the width, tapering posteriorly to the pedicel, and 
constricted beneath the border of the peristome, which is everted and 
equal in breadth to the entire length of the body ; subspherical when 
contracted, and anteriorly crenulated; ciliary disc not elevated; 
cuticular surface hearing numerous scattered hemispherical or ovate 
elevations, diverse in size, and usually collected about the equatorial 
region into irregularly disposed series, each prominence enclosing a 
nuclear nodule ; parenchyma finely granular; contractile vesicles two , 
small, spherical, pulsating alternately, one placed somewhat above 
and in front of the other, near the pharyngeal passage; pedicel four 
to five times longer than the body. Length of body 50/x ; width of 
pedicel o/x. Solitary, or few together. 
International Scientific Association. —The Editor of the American 
Journal “ Science,” advocates the formation of an International 
Scientific Association, which should hold its congresses at intervals in 
the different countries of the civilised world. The Editor of the 
“ American Naturalist,” while allowing that such a body would have 
its uses, considers that, unless great care were taken to prevent the 
management from falling into amateur and unscientific hands, its life 
would be feeble and its value small, and the time occupied in attending 
its sessions wasted. And he suggests that it would be easier and safer 
to expand the existing International Association of Geologists, which 
originated at Philadelphia at the time of the Centennial Exposition, 
so as to include all the sciences; the geologists could not be spared 
from the proposed new body, and they could scarcely attend the 
meetings of both. 
Mineral Ore Deposits. —“ The miner of the nineteenth century of 
our era has hut a small increase of guiding light into the mysteries of 
ore deposits beyond that which directed the labours of the miner who 
lived nineteen centuries before the birth of Christ. The sum of our 
knowledge admits of the following grouping, but of little more:—1. 
Detrital deposits have been formed by the wearing down, under 
atmospheric influences, of the older rocks containing metallic ores and 
native metals, and this debris has been distributed by aqueous agency. 
2. Some ores are diffused through the rocks, and may be regarded as 
contemporaneous with them. 3. Fissures have been formed through 
the rocks by mechanical disturbances, acting mainly from below ; and 
