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Shells are all reducible to his genera; I must nevertheless, in justice to M. Draparnaud, remark, that I esteem his work to be a most admirable one; and that his genera (at least those adopted by him), considering them as subdivisions of the Linnæan genera, are, with few exceptions, secundum naturam."

Arrangement of the Suffolk Land and Fresh-water Shells.

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40. paludosa

41, ericetorum

42. virgata

43. caperata
44. rufescens
45. Cantiana
46. nitens
47. nitidula

48. hispida
49. radiata
50. Kirbii
51. trochiformis

52. crystallina
53. spinulosa
54. arbustorum
55. nemoralis

56. hortensis

57. aspersa

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HELIX, Drap. and Lamarck.

BULIMUS, Drap. and Lam.

SUCCINEA, Drap, and Lam.

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Tellina stagnicola.-T. testa rhombea glabra, umbone exserto. Cyclas calyculata, var. 2. Lamarck, Anim. sans vert. v. 559. Habitat in stagnis. Testa 44 lin. longa, 51 lin. lata, glabra, tenuis, pellucida, cornei coloris, epidermide nulla. Valvulæ versus marginem complanatæ.

Tellina Henslowand.-T. testa oblique subovata transversim vix sulcata, projecturâ a basi umbonis adornata. Habitat in rivis. Testa 2 lin. longa, 2 lin. lata, cornei coloris, glabra, striata, vix sulcata, anteriùs planiuscula.

Turbo Leachii.-T. testa imperforata subovata, anfractibus 5 rotundatis oblique decurrentibus, sutura conspicua, apertura suborbiculari, operculo membranaceo. Habitat in rivis. Testa 3 lin. longa, 1 lin. lata, cornea, diaphana, glabra. Anfractus 5, teretes. Spira elongata. Apex acutus.

Turbo Offtonensis.-T. testa fusca striata subpellucida, anfractibus septem secundis sensim minoribus, aperturâ rotundatâ edentulâ nec marginatâ. Habitat super gramina et arbusta in sylvis, super truncos arborum, atque inter folia putrescentia. Testa plusquam 1 lin. Angustior quam T. muscorum et T. marginatus, et spiris sensim minoribus. Apertura edentula, margine nec reflexo, nec diverso colore.

Helix Draparnaudi.-H. testa supra subconcava subtus concava subcarinata, anfractibus quatuor transversim striatis: ultimo, majore. Habitat in aquis dulcibus. Testa diametro 3 lin. supra grisea, subtus albida, nitescens, anfractibus quatuor, ultimo, in medio juxta aperturam, subcarinato. Apertura dilatata. Helix Somershamiensis.-H. testa grisea umbilicata, anfractibus 2 vix 3 reticulatis. Habitat in sylvis, rarissima. Equal in magnitude to a middle-sized H. alba, which it resembles in shape; is of a greyish colour, and curiously reticulated, particularly above.,

Helix Kirbii.-H. testa nunc subconica nunc subdepressa subpellucida striata, anfractibus quatuor, umbilico patulo. Habitat sub saxis et lignis. Testa diametro lin. rufo-cornea; anfractibus subtiliter striatus. Apertura subrotundo-lunata. Labium tenue. Umbilicus profundus.

ARTICLE XIII.

Proceedings of Philosophical Societies.

METEOROLOGICAL SOCIETY OF LONDON.

On the 15th of October, a Meeting was held at the London Coffee House, Ludgate-hill, to take into consideration the propriety of forming a Meteorological Society. Among the gentlemen present were Drs. T. Forster, Clutterbuck, Shearman, Mr. Luke Howard, &c.: at eight o'clock the Chair was taken by Dr. Birkbeck, when the following Resolutions were agreed

to:

1. Resolved, That the formation of a Society to promote the advancement of Meteorology, have the cordial approbation of this Meeting.

2. Resolved, That a Society be formed to be called "The Meteorological Society of London."

3. Resolved, That the business of this Society shall be conducted by a President, Vice-Presidents, Treasurer, Secretary, and Council; and that the number of Vice-Presidents and Members of the Council be determined at a subsequent Meeting.

4. Resolved, That Mr. Thomas Wilford be requested to officiate as Secretary to this Society (pro tempore), and that he be authorized to send a printed summons to attend the next Meeting to each person who shall become a Subscriber.

5. Resolved, That an Annual Subscription of Two Guineas be paid in advance by every Member of this Society.

6. Resolved, That those gentlemen present who are inclined to become Members of this Society, do now send their names to the Secretary to be enrolled.

7. Resolved, That a Committee of three Members be appointed, in conjunction with the Secretary, to draw up an account of the Society's proceedings this evening.

8. Resolved, That scientific men throughout the United Kingdom are solicited to co-operate with this Society, and to transmit communications to it; and that this Society will always be ready to receive meteorological observations from the cultivators of science throughout the various quarters of the globe.

9. Resolved, That no other qualification be required to constitute eligibility to this Society, than a desire to promote the science of Meteorology.

10. Resolved, That after the next Meeting the election be by ballot upon the proposition of three, and that a majority of Members decide.

11. Resolved, That this Meeting do adjourn to the 12th of November next, to meet at the same place and hour.

MEDICO-BOTANICAL SOCIETY OF LONDON.

This Society held its first meeting this Session on Friday, Oct. 10.

An address was delivered to the members on the objects and utility of the Institution; after which the death of its late Honorary Member, Dr. Baillie, was notified to the Society, accompanied by an appropriate eulogium on his character.

The meeting then adjourned to Oct. 31, 1823.

ARTICLE XIV.

SCIENTIFIC INTELLIGENCE, AND NOTICES OF SUBJECTS

CONNECTED WITH SCIENCE.

1. Return of the Expedition for the Discovery of a North-west Passage.

OUR readers have doubtless been apprised, through the public papers, of the safe return of the Expedition under Capt. Parry. The primary object of the voyage, it appears, has not been attained; the only channel through which a passage to the westward was to be expected, after it had been ascertained that the openings in Repulse Bay and its neighbourhood were mere inlets to the American continent, being blocked up by ice throughout the year. No particulars have as yet transpired respecting the scientific results of the Expedition, which we deem sufficiently authentic for their transfer to the pages of the Annals.

II. Solar Light and Heat.

Mr. Powell has been for some time engaged in experiments on solar light and heat. He has examined the heating power of the prismatic rays, but chiefly with respect to the effects said to be produced beyond the red end of the spectrum. He has found that such effects are really produced; but has accounted for their being observed in some cases, and not in others, from certain differences in the coatings of the thermometers employed. He has concluded from a number of experiments with different coatings, that this heating effect is similar in its relations to surfaces, to common radiant heat; and differs essentially in this respect from the heating power within the spectrum. He has made other experiments from which the nature and origin of this effect may with great probability be inferred. The details will soon be made public.

III. On Cleavelandite.

From the examination Mr. Levy has recently made of the felspars contained in Mr. Turner's collection, it appears that half the specimens which have hitherto been ranked under this name, belong to the species which had been called albite, and has recently received the name of cleavelandite from Mr. Brooke. It is rather curious that the crystallographical difference between this last substance and felspar, should have been detected upon specimens laminated, but not regularly

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