Rica, and the botanical results of his expedition have appeared in numerous papers in the Transactions of the Copenhagen Natural History Society, and in a series of memoirs on different natural orders, in conjunction with Bentham, Berg, Griesbach, and Planchon. In 1863 was commenced "L'Amérique Centrale” which contains descriptions and figures of new tropical American plants. Oersted's researches in fungi were important, especially his demonstration that Rostelia is but a dimorphic condition of Podisoma, and his investigations into the organs of reproduction in Agaricus. He was appointed Professor in 1860.-Journal of Botany.

A RARE opportunity is offered for those who want a collection of Californian Coleoptera, and insects of other orders. Mr. G. R. Crotch, late assistant librarian at Cambridge University, England, proposes to spend about a year on the Californian coast, going as far south as Guaymas, and then up to Vancouver Island. Mr. Crotch will make a specialty of Coleoptera, which will be named by Dr. Leconte, and made up into sets at ten dollars per one hundred species, two specimens being given whenever practicable. He is willing to collect other orders if wanted.

WE take pleasure in drawing attention to the Essex Institute course of eight lectures entitled "Eight evenings with the Microscope," now in course of delivery in Salem, by Rev. E. C. Bolles. The subjects are "With the Microscope Maker," "In the Laboratory." "In the Garden," "In the Forest," By the Pondside and Seaside," "Among the Insects," "With the Zoologist," "With the Polariscope and Spectroscope." These subjects are most clearly, pleasantly and ably handled by the lecturer. The illustrations enlarged by the microscope and thrown upon a screen twenty-five feet in diameter, by aid of two powerful calcium lanterns, are simply splendid, and we doubt if more finely illustrated lectures for a popular audience have ever before been presented in this or any other country.

A NEW Society has been organized in Sacramento, California, under the name of the "Agassiz Institute," with the following officers: Dr. T. M. Logan, President; F. E. Potter, Recording Secretary; Rev. J. H. C. Bonté, Corresponding Secretary. We are informed that the new society has been formed on the model of the Essex Institute of Salem, and that it owes its birth in great part to the recent visit of Prof. Agassiz, after whom it is named.

BOOKS RECEIVED.

Corals and Coral Islands. By James D. Dana. New York. Dodd and Mead, 1872. Svo pp. 398. Illustrated with woodcuts, plates and maps.

Man in the Past, Present and Future. A popular account of the Results of recent scientific Research as regards the Origin, Position and Prospects of the Human Race. From the berman of Dr. L. Buechner, by W. S. Dallas, London. Phila., J. B. Lippincott. Svo, pp. 5.

Erotution of Life. By Henry C. Chapman, M.D., Philadelphia. J. B. Lippincott, 1874. 8vo, pp. 193. Illustrated.

Catalogue of Microscopical Preparations in the Cabinet of the Queckett Microscopical Club.
Svo, pp. 39. London, 1872.

Seventh Report of the Queckett Microscopical Club. 8vo, pp. 58. London, 1×72.
Intermembral Homologies. By Burt G. Wilder, M.D. 8vo, pp. 88. Boston, 1871.
Fifty-fourth Annual Report of the New York State Library, 8vo, pp. 156. Albany, 1972.

Notes on the Post-pliocene Geology of Canada; with especial reference to the Conditions of Accumulation of the Deposits and the Marine Life of the Period. By J. W. Dawson, LL.D. sỏ, pp. 112. 6 plates. Montreal, 1872.

Tidsskrift for Populære Fremstillinger af Naturvidenskaben. Fjerde binds fjerde hefte. *vo, pp. 241-324. Kjobenhavn, 1872.

Discovery of Fossil Quadrumana in the Eocene of Wyoming; Note on a new genus of Carnitores from the Tertiary of Wyoming; Notice of a New Reptile from the Cretaceous, p.1. From the American Journal of Science and Arts, vol. iv, November, 1872. By O. C. Marsh, Published October 8, 1872.

Notice of a new species of Tinoceras. (From the Amer. Jour. Sci. and Arts, Oct., 1872. By O. C. Marsh. p. 1. Published Sept. 21, 1872.

Notice of some Remarkable Fossil Mammals; Notice of a New and Remarkable Fossil Bird. (From the Amer. Jour. Sci. and Arts, vol. iv, Oct., 1872.) By O. C. Marsh. pp. 2. Published September 27, 1872.

Preliminary Description of New Tertiary Reptiles. Part II. (From the Amer. Jour. Sel, and Arts.) By Prof. O. C. Marsh. 8vo, pp. 6. Published Sept. 24, 1872.

Materiaux pour la Faune Belge. Deuxieme Note, Myriapodes. Par Felix Plateau, svo, pp. 21, with 2 plates. Bruxelles, 1872.

Qu'est-ce que l'aile d'un insecte? Par Felix Plateau. 8vo, pp. 10, with 1 plate.

Descriptions of New Species of Birds of the Genera Icterus and Synallaris. By George N. Lawrence. Svo, pp. 2. (From Ann. Lye. Nat. Hist., N. Y.)

Twentieth Annual Report of the Regents of the University of the State of New York on the condition of the State Cabinet of Natural History and the Historical and Antiquarian Colection anneret thereto, Revised edition, 1870. Large Svo, pp. 448, 25 plates. State Document.

Catalogue of the New York State Library, 1872. Subject Index of the Sectral Libraries, sro, pp. 651. State Document.

Fifth Annual Report of the Trustees of the Peabody Museum of American Archæolooy and Ethnology. 1872. 8vo, pp. 35.

Notes on Chalcidia. Parts V, vi, vii. By F. Walker. London, 1872. 3 pamphs., to p. 129. 8vo. Proces Verbal de la Societe Malacologique de Belgique. April 7-July 21, 1872, Svo.

Fourth Annual Report of the Trustees of the Peabody Academy of Sciences, for the year 1871. Svo, pp. 148.

Underground Treasures: How and where to Find Them. A Key for the ready determination of all the useful minerals within the United States. By James Orton. Cloth, 12mo, pp. 157. IIlustrated. Hartford: Worthington, Dustin & Co. 1872.

The White Coffee-leaf Miner (Cemiostoma coffeellum Stainton). A Report as Entomologist to the Government of Brazil. By B. Pickman Mann. (Reprinted from the American Naturall-t.) 8vo. pp. 21, and plate. 1872.

Report of the Geological Survey of the State of New Hampshire, showing its progress during the year 1871. By C. II. Hitchcock. 8vo, pp. 56, and map. State Document.

The Birds of Florida; containing original Descriptions of upwards of 2500 species, with notes upon their habits, etc. By C. J. Maynard. Part I. 4to, pp. 32, and I colored plate, Salem. Naturalists' Agency. 1872.

Grevillea, a Monthly Record of Cryptogamic

Botany. No. 4. October, November, 1872.
Bulletin of the Torrey Botanical Club, Vol. iii.
Nos. 9 and 10. September and October.
Geological Magazine. Vol. ix, Nos. 5-7, May,
June and July.

Journal of Botany, British and Foreign, for
Sept., Oct., Nov., 1872.

Entomologist's Monthly Magazine for Oct., '72.
Revue Scientifique. Paris. Nos. 12-18. Sept.
Oct., Nov., 1572.

Journal of the Franklin Institute. Sept, Oct.,
Nov., 1872.

Quarterly Journal of Microscopical Science
for July and October, 1872.

Journal of the Queckett Microscopical Club for
July, 1872.

The American Journal of the Medical Sciences.
Philadelphia, Oct., 1872.

The Scottish Naturalist. Perth. Vol. 1. Nos.
6 and 8. Apr. and Oct., 1872.
American Journal Science and Arts. New
Haven. Oct, and Nov., 1872.

The Field. London. Nos. for Sept., Oct..
Nov., 1872.

Land and Water. London. Nos, for Sept.,
Oct., Nov., 1872.

The Academy. London. Nos. for Sept., Oct.
Nov., 1872,

Nature. London. Nos. for Sept., Oct., Nov.,
1872.

Science Gossip. London. Nos, for Sept., Oct.
Νον., 1872,

[Our stock of paper made for the NATURALIST was stored in Boston, and was destroyed in the fire. As it would be several weeks before we could have paper made to match we are obliged to use a different quality for these last signatures of the volume. - EDS.]

INDEX TO VOLUME VI.

Aboriginal relics known as "Plummets," | Birds' eggs, instructions for preparing, 281.

Balanoptera musculus, description of, 473. Calculi from the stomach of a horse, 552.
Balanoglossus, young stage of, 636.

Cemiostoma, notes on, 489.

coffeellum, 332.

Centipedes of Wyandotte Cave, 414.

Central Park Museum, 251.

Centronyx Bairdii, 637.

Cetaceans, a new work on, 782.

Evolution, 246.

of life, 700.

Exogens and endogens. 319.

Eyes, absence of, in classification, 631.

Face-urns, occurrence of. in Brazil, 607.

Chelifer and Phalangium, embryology of, Faunal provinces of America, 689.

767.

Chicago Academy of Sciences, 127.
Chologaster Agassizii, 23.

cornutus. 21.

Classification, absence of eyes in, 691.

Coal of Wyoming, geological age of, 669.
beds in Panama, 59.

measures, land shells from, 696.

Coffee-leaf Miner, 332, 596.

Coleoptera, Californian, 783.

Colorado, alpine flora of, 734.

mountains of, 65.

birds, 342.

potato beetle, 234, 364.

Fedias of the Northern United States, 383
Field mouse from Texas, 772.
Filaria anhinga, 560.

Fish, venomous, 491.

Fish-beds of Osino, Nevada, 775.
Fishes as surgeons, 48.

fossil from the Cretaceous strata of
Kansas, 249.

how to collect them, etc.. 113.
peculiar coloration in, 237, 637.
respiration of, 235.

Flathead Indians, 179.

Flax and hemp, fibres of, 187.
Flies and contagious diseases, 694.

Compositæ, geographical distribution of, Flower, double, 299.

361.

Corals, 674.

deep sea, 295.

Flowers, Alpine, 686.

Flora and fauna of the Azores, 176.
Fossil plants of Canada, 99.

Corpuscles, passage of, through the, blood-Fossils, artificial, 376.

vessels, 60.

Fossils, new from the West, 495.

Couch's Flycatcher, occurrence of, in the French Association for Advancement of
United States. 433.

Danaus Archippus, duration of life of, 237. Germs, vitality of, at high temperature, 213.
Darwinism and histology, 187.

in the Gulf of St. Lawrence, 174. Gulf of St. Lawrence, dredgings in. 174.

Echinorhyncus gigas, 450.

Eel, new entozoon from, 445.

species of, 449.

Eels in paste. 375.

Harporhynchus, nest, eggs and breeding
habits of, 370.

Hassler Expedition, 63, 319, 382, 50, 575.
Helenium tenuifolium. 45.

Eggs, partial development of, without fer- Helminthophaga Luciæ, nest and eggs of.

description of new spe. Mimicry in plants, 233.

Massachusetts, topographical atlas of, 163. Moosewood fibre, 487.