some influence from the living vessels that contain tains its fluidity, and that so soon as it is removed f ences it coagulates or dies. In this case the blor and coagulation took place fifteen hours after t respiration and circulation, and after the blood cumstances showing that the phenomenon i

On motion of Mr. Vaughan, Maximilian of Neuwied should of the Transactions of the Sc Mr. Vaughan further sta intimated his intention of of his Voyage to Americ The Librarian, in act ciety,* presented, for

is proposed to send t

The resolutions, ade bution of the Society's

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to belong to the Jura Formation. Von ew, and places them higher up in the series; Formation. After a careful perusal of Von ▲ a re-examination of the specimens, Mr. Lea still evious opinion, that these forms belong properly to the es, and not to the Chalk. He is the more confirmed in on from having since been enabled to examine Captain lemoir on the Geology of Cutch, recently published in the al Society's Transactions of London, Second Series, Vol. 2; where the forms represented have a strong alliance to described by Mr. Lea. Captain Grant states, that the minecal character of the rock "greatly resembles the English Lias; its fossils have been found, after a careful examination by Mr.

u. Testâ ovato-trigonâ, multicostatâ; costis rculato-asperis; areâ posticâ carinatâ.

caimana. Testâ trigonâ, posticè productâ inflatâ; cos

sis lævibus.

gonia Hondaana. Testâ ovato-trigonâ, inflatâ, multicostatâ; ustis transversis, tuberculato-nodosis; areâ posticâ elevatâ, crebrissimèque nodosâ.

Natica Gibboniana. Testâ ovatâ, ventricosâ; spirâ productiusculâ; anfractibus quinis, subplanulatis; aperturâ contractâ, elongatâ. Spatangus Colombianus. Sp. ovato-cordatus, gibbus, convexus, anticè planulato; ambulacris quinis, lanceolatis, transversim punc

tatis.

Terebratula Tayloriana. Testâ triangulari, sulcis longitudinalibus impressis; valvâ inferiore in superiorem refexâ; margine biplicato. Terebratula Poeyana. Testâ elongato-ovatâ, lævi, inflatâ; nate productâ, incurva; foramine submagno.

Tellina [?] Humboldtiana. Testâ scaleniâ, inflatâ, anticè truncatâ ; striis transversis, elevatis, remotiusculis, rotundatis.

The Committee, consisting of Dr. Patterson, Prof. Bache, and Mr. Walker, to whom was referred a paper, entitled, "On

WorM

Stated Meeting, June 19.

Present, twenty-four members. .

Mr. DU PONCEAU, President, in the Chair.

The following donations were received:

FOR THE CABINET.

Several Stones, worked by the Indians with Stone Hammers, found in an Indian workshop, five miles from Paradise, near Lancaster, Pennsylvania.—From Mr. Redmond Conyngham.

The Committee, consisting of Mr. Taylor, Mr. Booth, and Dr. Hays, to whom was referred a Communication, entitled "Notice of the Oolitic Formation in America, with Descriptions of some of its Organic Remains, by Isaac Lea," reported in favour of publication, which was ordered accordingly.

In this paper Mr. Lea describes a number of fossils from New Granada and Cuba, which he considers to belong properly to the forms resembling those well known to exist in the Oolites (Jura formation) of Europe. In a note Mr. Lea mentions, that after his paper was written, the work of the distinguished geologist, Von Buch, was received by him from the author. In this work, Von Buch describes and figures some of the fossils from the same formation in New Granada, taken by Humboldt nearly forty years since to Europe, which that learned traveller, in his "Essay on the Superposition of Rocks," considered to belong to the Jura Formation. Von Buch takes a different view, and places them higher up in the series; that is, in the Chalk Formation. After a careful perusal of Von Buch's work, and a re-examination of the specimens, Mr. Lea still holds to his previous opinion, that these forms belong properly to the Oolitic series, and not to the Chalk. He is the more confirmed in this opinion from having since been enabled to examine Captain Grant's Memoir on the Geology of Cutch, recently published in the Geological Society's Transactions of London, Second Series, Vol. V. Part 2; where the forms represented have a strong alliance to those described by Mr. Lea. Captain Grant states, that the mineralogical character of the rock "greatly resembles the English Lias; but its fossils have been found, after a careful examination by Mr.

James Sowerby, to assimilate very closely to those of the Oolitic beds," &c.

Mr. Lea's paper contains descriptions of the following species: Orthocera Humboldtiana. Testâ rectâ, elongato-conicâ, subcylindraceâ; articulis transversis, subdistantibus.

Ammonites Tocaimaensis. Testâ orbiculari; anfractibus planulatis, transversim costulatis; costis planulatis; peripheriâ minutè sulcatâ.

Ammonites Occidentalis. Testâ orbiculari, utrinque umbilicatâ ; anfractibus rotundatis, transversim costulatis; periphæriâ rotundâ, sulco circulari destitutâ.

Ammonites Gibboniana. Testâ orbiculari; anfractibus compressis; costis elevatis, carinatis, remotiusculis ad periphæriam.

Ammonites Vanuxemensis. Testâ orbiculari, utrinque umbilicatâ; anfractibus convexo-cylindraceis, transversim crebrissimèque costulatis; periphæriâ rotundâ, sulco circulari destitutâ.

Ammonites Americana. Testâ orbiculari; anfractibus subplanis, -obliquè costulatis; periphæriâ sulcatâ.

Trigonia Gibboniana. Testâ ovato-trigonâ, multicostatâ ; costis transversis, subtuberculato-asperis; areâ posticâ carinatâ.

Trigonia Tocaimana. Testâ trigonâ, posticè productâ inflatâ ; costis transversis lævibus.

Trigonia Hondaana. Testâ ovato-trigonâ, inflatâ, multicostatâ ; costis transversis, tuberculato-nodosis; areâ posticâ elevatâ, crebrissimèque nodosâ.

Natica Gibboniana. Testâ ovatâ, ventricosâ; spirâ productiusculâ; anfractibus quinis, subplanulatis; aperturâ contractâ, elongatâ. Spatangus Colombianus. Sp. ovato-cordatus, gibbus, convexus, anticè planulato; ambulacris quinis, lanceolatis, transversim punctatis.

Terebratula Tayloriana. Testâ triangulari, sulcis longitudinalibus impressis; valvâ inferiore in superiorem refexâ; margine biplicato. Terebratula Poeyana. Testâ elongato-ovatâ, lævi, inflatâ; nate productâ, incurva; foramine submagno.

Tellina [?] Humboldtiana. Testâ scaleniâ, inflatâ, anticè truncatâ ; striis transversis, elevatis, remotiusculis, rotundatis.

The Committee, consisting of Dr. Patterson, Prof. Bache, and Mr. Walker, to whom was referred a paper, entitled, "On

the insufficiency of Taylor's Theorem as commonly investigated, with Objections to the Demonstrations of Poisson and Cauchy, and the assumed Generalization of Mr. Peacock; to which is added, a New Investigation and remarks on the Development and Continuity of Functions, by Charles Bonnycastle, Professor of Mathematics in the University of Virgi-. nia," reported in favour of its publication in the Transactions of the Society, which was ordered accordingly.

The paper of Professor Bonnycastle is composed of three sections. In the first, which is on the "Development of Functions," he points out and discusses what he considers to be "the errors and conflicting views resulting from the vague manner in which mathematical writers have usually conceived the ultimate object of their peculiar logic.” The second section is on the "Continuity of Functions," and the division of this continuity into classes; a subject heretofore touched upon only incidentally by other writers. The principal object of the paper is presented in the third section, which treats of "Functions consi-' dered in the order of their magnitude," and particularly of "Taylor's Theorem ;" and the author discusses this subject with the care demanded by a theorem which forms the basis of the differential and integral calculus, and which acts so important a part in all the higher mathematics.

Mr. Walker, from the Committee on making and collecting observations of Celestial Phenomena, reported, in part, that they had received observations of Lunar Occultations of the Fixed Stars, which are given in the mean time of the respective places of observation, being a continuation of the list published in No. 6, pages 71 and 72, of the Society's Proceedings; and, on motion, the report was accepted.