SURFACE.

English value. Centiare, (100th of an are, or a square metre) ......

... 1.1960 square yards. Are, (square decametre and unit of surface).......:••

119.6033 square yds., or 0.0247 acres. Decare, (10 ares)....

...... 1196.033 square yds., or 0.2474 acres. Hectare, (100 ares).......

..11960.33 square yds, or 2.4736 acres.

CAPACITY.

Millilitre, (1,000th of a litre, or cubic centimetre) ..............

0.06103 cubic inches. Centilitre, (100th of a litre)...... 0.61027 cubic inches. Decilitre, (i0th of a litre).....

6.10270 cubic inches. Litre, (cubic decimetre and unit of

pacity)......................... 610.2705 cubic inches, or 2.2010 galls. Decalitre, (10 litres)........... 61.02705 cubic inches, or 1.7608 pts. Hectolitre, (100 litres).......

3.53166 cubic feet, or 22.0097 galls. Kilolitre, (1,000 litres, or cubic metre.). 35.31658 cubic feet, or 220.0967 galls. Myrialitre, (10,000 litres)............ 353.1658 cubic feet, or 2200.9667 galls.

SOLID.
Decistere, (10th of a stere).......... 3.5317 cubic feet.
Stere, (cubic metre).................

35.3166 cubic feet. Decastere, (10 steres).......

353.1658 cubic feet.

WEIGIIT.

Milligramme, (1,000th of a gramme)... 0.0154 grains.
Centigramme, (100th of a gramme).... 0.1544 grains.
Décigramme, (10th of a gramme).... 1.5440 grains
Gramme, (unit of weight)........... 15.44 grains.
Decagramme, (10 grammes).......... 154.4 grains.
Hectogramme, (100 grammes)..... 1544 grains, 3.2167 oz. troy, or 3.5291

oz. avoirdupois. Kilogramme, (1,000 grammes)...... . 321 oz. troy, or 2.2057 lbs. avoirdupois. Myriagramme, (10,000 grammes)..... 3213 oz. troy, or 22.057 lbs. avoirdupois.

Value of millimetres in English inches.

Millimetres. English inches. Millimetres. English inches. | Millimetres. English inches.

Table for the conversion of degrees of Centigrade thermometers into those of

Fahrenheit's scale.

-148.0
-146.2
-144.4
-142.6
-140.8
- 139.0
--137.2
---135,4
--133.6
--131.8
-130.0
—128.2
-126.4
-124.6
-122.8
--121,0
-119.2
-117.4
-115.6
-113.8
-112.0
-110,2
-108.4
-106.6
-104.8
-103. O
-101.2

127.4 129.2 131.0 132.8 134.6 136. 4 138.2 140.0 141.8 143.6 145.4 147.2 149.0 150.8 152.6 154.4 156.2 158.0 159.8 161.6

O O OOOOOOOOOOOOOOOOOOOOOOOOOO

163,4

TUTTI||||||||||||||||||||||||||||||||||||||||||||||

HSS

165.2 167.0 168.8 170.6 172.4 174.2 176.0 177.8

one osa OID

MOONOA NOOOOOOOOOOOOOO

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII+

15.8

Lowowoween cos

181.4 183.2 185.0 186.8 108.6 190,4 192.2 194.0 195.8 197.6 199.4 201.2 203.0 204.0 206.6 208.4 210.2 212.0 213.8 215.6 217.4

98.6 100.4 102.2 104.0 105.8 107.6 109.4 111.2 113.0 114.8 116.6 118.4 120.2 122.0 123.8 125, 6

17.6 19.4 21.2 23.0 24.8 26.6 28.4 30.2 32.0 33,8

100 101 102 103

0 0 NT ENTS,

REPORT OF THE SECRETARY.

Letter of the Chancellor and Secretary to Congress...-------...------------------.
Letter of the Secretary submitting Report for 1863-------------------------------
Officers and Regents of the Smithsonian Institution------------------------------
Members ex officio and honorary members of the Institution-----------------------
Programme of Organization----------------------------------------------------
Report of the Secretary, Prof. Henry, for 1863-----------------------------------
Report of the Assistant Secretary, Prof. Baird, for 1863---------------------------
Statistics of international exchanges --------------------------------------------
Donations to the museum in 1863-----------------------------------------------
List of Smithsonian publications in 1863, and works in press----------------------
List of meteorological stations and observers-------------------------------------

REPORT OF THE EXECUTIVE COMMITTEE...... -------------------------------
JoURNAL OF PROCEEDINGS OF THE BOARD OF REGENTs......................

ExTRActs FROM CoRRESPONDENCE -----------------------------------------.

GENERAL APPENDIX.

Lectures on THE PRINCIPLEs of LINGUIstic SciENCE, by Prof. W. D. WhitNEy.
MEMoir of C. F. BEAUTEMPs-BEAUPRE, by M. ELIE DE BEAUMoNT. .........

ORIGIN AND History of THE Royal Society of LoNDoN, prepared by C. A.

ALEXANDER --------------------------------------------------------------Modern Theory of CHEMICAL TYPEs, by Dr. CHARLEs M. WeTHERILL...... RESEARCHES ON THE PHENOMENA WHICH ACCOMPANY THE PROPAGATION OF Electricity IN HIGHLY RAREFIED ELASTIC FLUIDs, by Prof. A. DE LA Rive. REPORT ox THE PROCEEDINGS OF THE Society of Physics AND NATURAL. HisTory of GENEva, from July, 1862, to June, 1863, by Prof. MARCET. .......... ExPERIMENTAL AND THEORETICAL RESEARCHEs on the FIGUREs of EQUILIBRIUM of A Liquid MAss witHDRAwn from The Action of GRAvity, &c., by Prof. J. PLATEAU, (39 wood-cuts)-----------------------...--------------History of Discoverty RELATIVE To MAGNETISM ........................... RECENT RESEARCHES RELATIVE To The NEBULAE, by Prof. GAUTIER........... FIGURE of THE EARTH, by Sr. Miguel, MERINo.................... ---------. AERONAUTic Voyages PERFORMED WITH A WIEw To The ADVANCEMENT of SciENCE, Account of, by FRANCIS ARAGo-----------...................... Account of BALLooN Ascensions, by JAMES GLAISHER..................... Account of THE ABORIGINAL INHABITANTS OF THE CALIFoRNIAN PENINSULA, by BAEGERT, translated by Prof. C. RAU -----------------------------------. ETHNOLOGY..—Account of KJOEKKEN-Moedding IN Nova Scotia, by J. M. Jones, of Halifax ----------------------------------------ABSTRACT of THE FIFTH REPORT OF DR. KELLER on LACUSTriAN SETTLEMENTS, by A. MoRLOT .......... -----------AGRICULTURAL IMPLEMENTS OF THE NORTH AMERICAN STONE PERIOD, by CHARLEs RAU, (2 wood-cuts)...... -------. -----

fage.

ETHNOLOGY..—Account of ANCIENT ForT AND BURIAL GROUND IN ToxiP-

KINs County, New York, by DAvid TRowBRIDGE.------- 3-1

Account of ANCIENT Town IN MINNEsotA, by O. H. KELLEY - 3-2

Account of ANCIENT RELics found IN Missouri, by J. W.

Foster -------------------------------------------------- 383

Account of A MoUND IN EAST TENNEssee, by A. F. DAN-

ILSEN ---------------------------------------------------- 384

PURPLE AND AZURE DYEING, ANCIENT AND MODERN, translated from Aus der

Natur--------------------------------------------------------------------- 3>

Method of PRESERVING LEpidoPTERA, by TITIAN R. PEALE, (4 wood-cuts). -- 44

Account of A REMARKABLE Accumulation of BATs, by M. FIGANIERRE is

MoRAo, Portuguese minister to the United States...... ------------------------ 407

TABLEs of WEIGHTS AND MEASURES...............................-- -------- 410

IND EX,

Page.
Aboriginal inhabitants of California. Account of.-------------------------------- 352
Aeronautic voyages. Account of -------------------------------------------- 331,349
Agassiz, Prof. L. Remarks on operations of the Institution ----------............ 79
Agricultural Department. Aid from, for meteorology----------------------------- 32
Agricultural implements of the North American stone period, by C. Rau............ 379
Ainsa meteorite. Account of -------------------------------------------------- 55,86
Alexander, C. A. History of the Royal Society of London....................... 137
Translations by------------------- 117, 169, 193,207,286,299,306,331,372
Allen, Dr. H. Monograph of the bats.----------------------------------------- 25, 27
Annuity to mother of nephew of Smithson--------------------------------------- 14
Antiquities. Directions for collecting------------------------------------------- 25
Antiquities of the North American stone period ---------------------------------- 379
Antiquities in California------------------------------------------------------- 352
Nova Scotia----------------------------------------------------- 370
Duchy of Parma ------------------------------------------------ 373
Italy ----------------------------------------------------------- 373
Lake of Constance----------------------------------------------- 374
Frauenfeld------------------------------------------------------ 374
Zug.----------------------------------------------------------- 375
Ebersberg------------------------------------------------------ 375
Zurich -------- --------------------- ---------------------------- 376
Savoy---------------------------------------------------------- 376
Neuchâtel------------------------------------------------------- 377
Illinois --------------------------------------------------------- 370
Tompkins county, New York------------------------------------- 381
Crow river, Minnesota ------------------------------------------- 382
Missouri-------------------------------------------------------- 383
East Tennessee-------------------------------------------------- 384
Arago's account of aeronautic voyages.------------------------------------------ 331
Aurora. Eleven years' period of---------------------------------...----------- 18
Azure and purple dyeing------------------------------------------------------ 385
Bache, Prof. A. D. Magnetic observations at Girard College---------...--...----. 16, 18
Baegert, Jacob. Account of aborigines of Californian peninsula................... 352
Baird, Prof. S. F., on the birds of North America.......... ---------------------- 36
Report of for 1863---------------------------------------------- - 44
Bats. Account of remarkable accumulation of.---------------------------------. 407
Monograph of, by Dr. H. Allen----------------------------------- 27
Balloon ascensions by Glaisher------------------------------------------------- 349
Balloons. Account of voyages in.--------------------------------------------- 331
Beaumont, Elie de. Memoir of Beautemps-Beaupré ----------------------...----. 117
Beautemps-Beaupré. Memoir of.---------------------------------------------- 117
Bequests and donations. Policy respecting ------------------------------------- 77
Binney, W. G. Bibliography of conchology------------------------------------ 22,23
Bradford, L. H. Photographs of medulla oblongata -------------...------------- 20

British Museum. Cuts of shells from...----------------------------------------- 22