234* On computing the relative Age of Deposits 



Dreadful earthquakes and volcanic eruption in Java. — 25. 

 Snow on Quantoc Hills. — Up to 25. Nile not risen. Drought 

 still in Demerara. — 26. Hurricane offScilly. (See Oct. 26.) 

 Earthquake at Khatmandhu. (Full moon.) — 27. Extraor- 

 dinary phosphorescence in Weymouth Bay. 



December I. Vesuvius still in eruption. — 2. Spots on the sun. 

 ■ — 3. Rains fell at Berbice and Demerara. — 9. Stormy petrel 

 killed on London Bridge. — 10, 11. Hurricane, lat. 46° N., 

 long. 13°w. Hurricane, lat. 41° n., long. 43° w. — 14. to 16. 

 Hurricane at Constantinople and Paros. — 23. Dreadful 

 gales, with hail and snow, till Jan. 5. 1834, off St. Andrew's, 

 North Britain. — 26. Hurricane in the Bosphorus. Tornado 

 at Trieste, from n. w., for two hours, restricted within a mile 

 of the spot; beyond it, smooth water. — 29. Aurora. — -31. 

 Terrible gales in London, Liverpool, &c. Commencement 

 of terrific storm at New Orleans, till Jan. 1. Heat of 70° to 

 80°, followed by ice and snow for four days ; when heat came 

 back again, on Jan. 5. 



N. B. During December, there rose floods in England, 

 Ireland, and Holland, France, and Germany. Snow began 

 to fall on Mount St. Bernard. Gales of wind, with lightning, 

 for thirteen weeks, in Europe, commenced. Severe weather 

 at New Orleans. Gales in North America ; especially about 

 the lakes. Meteor at Brunn. Scarcity at Oran, Africa. Gales 

 blocked up St. Valery, Dieppe, &c. The mildness, warmth, 

 violence of s. w. winds, and the deluges of rain and thunder 

 storms, have extended nearly all over Europe. In France, 

 there were inundations higher than any since 1740; the 

 Rhine, the Rhone, the Neva, overflowed. The Baltic re- 

 mained so open, that only nine English ships wintered at 

 Cronstadt. In Scotland, the weather was severe, with winds 

 at n. e. At New York, birds, not usually seen there in the 

 winter, were abundant. 



. gfiofci^q c jioih t *to T A .man** Y^niiqmoDDB douht 29x10 joniJXa 

 yjitasi 9tb nr 9vai l^: muJ. srfj s^ilnu e odw 



siriJ ifidb jjhnfj Jiqa.lo aonsnfinmq ban 



^nnaqnioD no .,ioi « riiiriJ touaab erti oJ' aieq luargol visv b ?i 

 Art. IV. On the Errors 'which may arise in computing the relative 

 Antiquity of Deposits from the Characters of their embedded 

 Fossils, By Hugh Edward Strickland, Esq., F.G.S., &c. 



Geologists are indebted to Mr. Charlesworth for having 

 pointed out two important sources of error in the application 

 of Mr. Lyell's rules for fixing the age of tertiary deposits. 

 The following remarks are intended to show that these errors 

 do not affect the principle of Mr. Lyell's test, but its prac- 



