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Genus II. CLYTEMNESTRA. (Dana.) Frons subrostrata, appendicibus nullis. Antenna antica flexiles; maris,

non subcheliformes. Pedes antici permagni, subcheliformes.

Obs. Non Arpacticus Bairdii : Cyclops chelifer Arpacticis pertinet. Magnitudo pedium anticorum character genericum non bene validum, nisi pergrandes, quoque pro antennis geniculatis in coitu usitati sunt; ideoque est antennæ maris Clytemnestræ non subcheliformes.

CLYTEMNESTRA SCUTELLATA. — C. rostro subacuto; cephalo-thoracis segmento antico lato, posticè utrinque dilatato, tribus segmentis sequentibus subito angustioribus margine posteriore valde arcuatis et lateribus posticè productis et subacutis ; abdomine 6-articulato, articulis subæquis, decrescentibus ; antennis anticis elongatis 8 (9?)-articulatis, articulo quinto (sexto ?) arcuato, sequente oblongo et apice cum appendice instructo (?), reliquis tribus oblongis ; setis longis divaricatis, duabus apicalibus fere antennæ longitudine ; pedibus anticis pergrandibus, articulo secundo subclavato, digito tenui arcuato fere articuli secundi longitudine.

Long. ". - Hab. in mari Pacifico, ad lat. 18° S., long. 124° W.; etiam at Insulas Kingsmills ; in mari Sinense.

Genus III. SETELLA. (Dana.) Corpus angustissimum fere lineare, anticè attenuatum et subacutum,

et fronte appendices duas parvulas falciformes subtus gerens. Antennæ anticæ flexiles, appendice brevi instructæ, setis brevibus ; maris non subcheliformes. Pedes antici mediocres aut parvi. Pe. des proximè sequentes lateraliter porrecti, apice breviter setigeri. Pedes abdominis elongati et longè setigeri. Setæ caudales duæ longissimæ, (in speciebus scrutatis corpore valde longiores, spinulosæ, et strictè appressæ,) reliquæ brevissimæ. (Tubum cibarium sæpius læte rubrum.)

1. SetellA TENUICORNIS. – S. antennis anticis fere corporis longitudine, articulis duobus basalibus valde crassioribus, secundo oblongo, reliquis teretibus gracillimis, tertio longissimo, quarto cum appendice instructo ; ramis pedis biremis antici subæquis, longiore 3-articulato, articulis fere æquis ; pedibus abdominis cum 5 - 6 setis elongatis subæquis instructis ; setis caudalibus corpore fere duplo longioribus.

Long. įs" setis caudalibus exclusis. — Hab. in mari Atlantico meridionali.

2. SETELLA LONGICAUDA. S. maris (?) antennis anticis basi non crassioribus, 7-aut 8-articulatis, articulo quarto paululum arcuato (postice convexo) et cum appendice instructo, tertio fere duplo longiore quam quartus aut secundus ; ramo longiore pedis biremis antici 3-articulato, articulo primo valde brevissimo; pedum abdominis ramo exteriore brevissimè setigero, interiore duabus setis spinulosis instructo, apicem abdominis fere attingentibus ; setis caudalibus corpore large duplo longioribus.

Long. ot".- Hab. in mari Atlantico meridionali.

3. SETELLA GRACILIS.-S. femine antennis anticis gracillimis usque ad basin, rectis, inter sese prope 130° divaricatis, articulo primo obsoleto, secundo quartum æquante et dimidio tertio longiore, quarto non arcuato ; digito pedis antici dimidio articulo secundo longiore ; setis caudalibus fere duplo corpore longioribus.

Long. ".- Hab. in mari Pacifico juxta insulas Kermadec et Tonga.

4. SETELLA CLASSICORNIS. S. maris (?) antennis anticis crassioribus, rectis, inter sese 130° divaricatis, articulo primo obsoleto, secundo tertioque brevibus, quarto appendiculato, hoc etiam sexto ultimoque tertium longitudine duplo superante; digito pedis antici dimidii articuli secundi longitudine ; setis caudalibus prope sesqui corporis longitudine.

Long. a'". - Hab. in mari Sinense.

5. SETELLA ACICULUS. - S. feminæ antennis crassiusculis fere rectè divaricatis, ad basin paulum curvatis, articulo primo perbrevi, secundo quartum longitudine æquante et longiore quam tertii dimidium ; pedis antici digito dimidii articuli secundi longitudine ; setis caudalibus sesqui corporis longitudine.

Hab. in mari Indico, prope Fretum Sundæ.

DONATIONS TO THE LIBRARY,

FROM DECEMBER, 1846, TO MAY, 1847.

Prof. S. Kutorga. Naturgeschichte der Infusionsthiere. 8vo. pamph. and Atlas. 4to. St. Petersburg, 1841. From Ch. Cramer, Esq.

Ch. Cramer. Etwas über die Natur-Wunder in Nord-America Zusammengetragen. 8vo. pamph. St. Petersburg, 1840. From the Author.

Fourth Bulletin of the National Institute for the Promotion of Science. 8vo. pamph. Washington, 1846. From the Institute.

1

Astronomical Observations made during the Year 1845 at the National Observatory, Washington. Vol. I. 4to. Washington, 1846. From the Observatory.

Silliman's American Journal of Science. Vol. III., No. 7, for Jan., 1847. From the Editors.

W. C. Redfield. On three several Hurricanes of the Atlantic, and their Relations to the Northers of Mexico and Central America, with Notices of other Storms. 8vo. pp. 118. New Haven, 1846. From the Author.

Maj. James D. Graham. Observations on the Magnetic Dip at sev. eral Positions, made in 1840, 1842, 1843, 1844, 1845. (Extr. from American Philos. Trans.) 4to. pamph. Philadelphia, 1846. From the Author.

Dr. Barratt. Report on the Season of 1846, to the Middlesex County Agricultural Society. 8vo. pp. 14. Middletown, Conn., 1846. From the Author.

Dr. Barratt. Geology of Middletown and Vicinity (Sentinel and Witness extra). Middletown, Conn., July 30, 1846. From the Author.

Dr. A. A. Gould. Expedition Shells. 8vo. pp. 25 – 32. Boston, 1846. From the Author.

Prof. E. N. Horsford. Chemical Essays relating to Agriculture. 12mo. Boston, 1846. From the Author.

Prof. E. N. Horsford. Untersuchungen über Glycocoll und einege seiner Zerselzunzsproducte. 12mo. pp. 57. Giessen, 1846.

W. C. Bond, W. C. Bond, Jr., and G. P. Bond. Occultations and
Eclipses observed at Dorchester and Cambridge, Mass. (Extr. Mem.
Amer. Acad.) 4to. pp. 8. 1846. From the Authors.
Asa Gray. Chloris Boreali Americana.

Illustrations of new, rare, or otherwise interesting North American Plants. Decade I. 4to. (Extr. Mem. Amer. Acad., Vol. III.) From the Author.

Wm. S. Sullivant. Contributions to the Bryology and Hepaticology of North America. Part I. 4to. (Extr. Mem. Amer. Acad. Vol. III.) From the Author.

Charles Holtzapffel. Turning and Mechanical Manipulation. 2 vols. 8vo. London, 1846. From the Author.

Charles Holtzapffel. On a Scale of Geometrical Equivalents for Engineering, &c. 8vo. pamph. London, 1838. From the Author.

Charles Holtzapfel. A New System of Scales of equal Parts, ap

plicable to various Purposes of Engineering, &c. 8vo. London, 1838. From the Author.

Mémoires de l'Academie Imperiale de St. Petersbourg, Tom. VI. and VII. (Sciences Mathematiques, IV., liv. 2de ; and Sciences Naturelles, Tom V., livr. 3me and 4me). 1845 – 46.

Mémoires presentés à l'Acad. Imp. Sci. St. Petersbourg, par divers Savans, Tom V., liv. 1 - 6, and Tom. VI., 1me livraison. 1844 - 46. From the Imperial Academy.

Silliman's American Journal of Science and Art. 2d Series, III. 8. for March, 1847. From the Editors.

Philosophical Transactions of the Royal Society of London for 1846. Parts 1, 2, 3. From the Royal Society.

Prof. Challis. Special Report of Proceedings in the Observatory (St. Catherine's Hall Lodge) relative to the New Planet. Dec. 12th, 1846. 4to. pp. 8. From the Author.

J. C. Adams. An Explanation of the Observed Irregularities in the Motion of Uranus, on the Hypothesis of Disturbances by a more distant Planet. (From the Appendix to the Nautical Almanac, for 1851.) 8vo. pp. 32. London. From the Author.

Proceedings of the Royal Astronomical Society. Vol. VII. No. 9. Nov., 1846. 8vo. pp. 16. From the Society.

Daniel Appleton White. Eulogy on John Pickering, LL. D., delivered before the Academy. 8vo. pp. 106. Boston, 1847. From the Author.

The Royal Geographical Society and its Labors. 8vo. pamph. pp. 32. London, 1846.

Fifteenth Annual Report of the Council of the United Service Institution, London. 8vo. pamph. pp. 52. 1846. From the Royal Geographical Society.

Maps of New Haven Harbour and Little Egg Harbour, made under the Direction of the Superintendent of the United States Coast Survey, 2 sheets. From the Superintendent.

Transactions of the Linnean Society of London. Vol. XX., Part 1st. 4to. London, 1846. From the Linnean Society.

Proceedings of the Linnean Society of London. 8vo. pp. 1-286. London, 1838 - 46. From the Linnean Society.

A. H. Everett. Critical and Miscellaneous Essays. Second Series. 8vo. Boston, 1846. From the Author.

N. B. Ward, F. L. S. On the Growth of Plants in closely glazed Cases. 8vo. London, 1842. From the Author.

Two hundred and ninety-sixth Meeting.

May 25, 1847. — ANNUAL MEETING. The PRESIDENT in the chair.

A communication was received, through Mr. Bowen, from Mr. John B. Williams, U. S. Consul at Russell, Bay of Islands, New Zealand, being a meteorological register kept at that place, by Mr. Williams, as follows:

METEOROLOGICAL REGISTER

Kept at Russell, New Zealand, from April 24th, 1843, to Aug. 141h,

1844.

66

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Fahrenheit Thermometer Date. in the Shade.

Winds and Weather. 8 A. M.] 12 M. 8 P. M. 1843, April 24, 70

70 96 N. W.; rain squalls. 25,63

63

N. W. and pleasant.
26, 64 60 54 N. and strong gales.
27 54 58 54 N.; rain, strong gales, ends pleasant.
28, 50 54 50 N. W.; clear and pleasant.
29, 50 48 57 S. W.; clear, ends squally, with rain.

30, 55 64 56 Light airs, calms, ends strong breeze, S. E. May 1

58 70 58 N. E. and pleasant.
2, 58 63 58 Light airs from S. W. and pleasant.
3,158 63 58

N. E.
4,58

59 S. E.; strong breezes and cloudy. 5, 59

60 S.
6,58

60
7,60
63 N. E.

and rain.
8,63 63 60 N., with rain; ends S. W. and squally.
9, 57 57 56 S. W.; light breeze.

52 56 53 S. W.; strong breezes from S. W.
11, 52 56 53
12, 52 56 53
13, 45 58 57

W.; light breezes and clear.
14, 52 56 59
15,62 62 61 Gale from E. S. E., attended with rain.
16, 62

61

E.; strong winds, and rain. 17,62

62 18, 62

61 E. N. E.; rain ; ends clear. 19, 60 61 59

S. E.; light breezes and rain. 20, 60 60 60 E.

and foggy. 21, 65

64 E. N. E. and rain squalls. 62 64 62 N.; squally. 23, 62 62 59 N. W., and heavy squalls. 24, 52 59 59 S. W.; light breeze, and pleasant. 25 59 59 59 S. E. and squally; ends N.W. to N.E. and pleasant. 26, 57 57 59 Strong breezes and pleasant. 27 53 57 54 W. S. W.; strong breezes. 28 56 56 56 W., and pleasant. 29. 52 54 52 S. Ś. W. and pleasant. 30, 52 50 49 S. S. E. and pleasant ; latter part rain. 31, 49 59 51 Gale from S. S. E., with rain.

22,

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