104 ; REPORT—1858, “6 THe? woo 
tion of the phrase “ vorticoso,” with that false notion of vorticose shock, 
such as was presumed to have twisted the Calabrian obelisks, &c., the real 
nature of whose displacement I indicated in 1846. (Trans. Roy. I. Acad. — 
vol. xxi. part 1. See also 1st Report Trans. Brit. Assoc. 1850, pp. 33, 34.) 
In conclusion, I would repeat my conviction that a further expenditure 
of labour in earthquake catalogues of the character hitherto compiled, and 
alone possible from the data to have been compiled, is now a waste of scien- 
tific time and labour. The main work presented for seismologists in the 
immediate future, must consist in good observations, with seismometers ad- 
vantageously placed at sufficiently distant stations, and galvanically connected 
as to time; and in the careful observation of the traces left by great shocks 
(when of recent occurrence) upon buildings and other objects artificial and 
natural, with a view to determining the nature of the forces that have affected 
them, aided by the resources of the physicist and mathematician. 
Amongst the unknown regions of our world, as respects the recurrence of 
earthquakes and their phenomena, the most prominent are Central Africa, 
Abyssinia, Madagascar, Northern Asia, and the north-west of North Ame- 
rica. For observations of the last, the new settlements about being formed 
at Vancouver’s Island will, no doubt, offer great facilities, as well as future 
access to the great Aleutian chain of volcanoes and their seismic zone. 
I reserve for the Appendix a few observations, upon great sea waves and 
certain ill-understood phenomena, which could not systematically find place — 
in this Report. 
Sy 
APPENDIX. 
‘ No. I. 
(P. 48.) The following table of some of the men and events upon which the 
progress of human knowledge and discovery and the diffusion of mankind have 
depended, may serve to illustrate the relations that these bear to the expand- 
ing character of the catalogue :— 
Date 
A.C. 
Yards for spreading ships’ sails invented ............csscssscauececcsscceccaeseccaesecessbactes 1200 
Silver money.—Anchors.—First sea fight...........:..ccssevececcesssesuceesesnnscessunstecees 700 
Amber and tin carried by Pheenicians from the Baltic and England to the Leyant.. 600 
The sounding-line used at sea—Maps in use.—Multiplication table—Moon’s 
eclipses caleulated:—Pythagoras \..ti.c1-..c-q/-cccseebeees feeccesscacctreccesssnumepepieees 500 
Trireme galleys in use.—The burning-lens KNOWN .............ececceeeeseeeessesensereeees 400 
War chariots in Gaul.—Arrack brought from India into Europe.—Electricity 
noticed.—Hemp, cordage (?), and sails (?).— Aristotle .........s0cseccccesseeduceseeeas 300 © 
Clepsydra.—Ballistee—Silver coin at Rome.—The olive.—Chinese wall.— Hannibal 200 
Lucullus introduces cleansing soap from Gaul—sal-ammoniac from Egypt.—Solar 
rear aie POW eE ee Le, A, OAR Te oe 100 
Christ born.—Seneca.—Strabo. AWD, 
Hrst.sex voyage to India, probably) ..ss.cxpipacasides sve vacua Sovdncsteeete cy eye eeeeeeeeneeee 3 
Stained-glass windows—the vine—Saw-mills—Monachism—all in Germany ......... 300 
The Western Empire.—Public lights at Antioch.—Church bells ..............cseeeeeee- 400 
The dark ages commence. 
Franks Christianized.—Silk-worms in Hurope................cccececcceceeeeecceceacavceeceas 500 
Hops.—Quill pens.—Latin disused.—Mahomet I. ...........cc..ccccssssesseeeseeeeceseeses 600 
