CONTENTS. 
iii 
Art. XIX. Geological distribution of the Fossil Organic Re- 
mains enumerated by Baron Von Schlotheim, 
arranged by Dr Boue', - - ^ 142 
XX. Geographical Expeditions, « « 146 
1. Captain Franklin and Dr Richardson’s Arctic Expe- 
dition, « » » ib. 
2. African Expedition under Denham and Olapperton, 147 
3. Captain Weddel’s Voyage towards the South Pole, 148 
4. Russian Expedition along the Northern Shores of Si- 
beria, - - - - 150 
5. Captain Lyon’s Voyage, • - 153 
XXL Remarks on the Strength of Materials, with an Ac- 
count of several Experiments on the Transverse 
Strength of Wood and Iron. By George Bu- 
chanan, Esq. Civil Engineer, Edinburgh, 154 
Experiments.— .On Bars of Memel Fir, supported at 
each end, and loaded in the middle. Distance be- 
tween the supports 5 feet, - - 162 
On Bars of Cast-Iron. Distance between supports 
32 inches, « - ib. 
XXII. On the Mines of Mexico. Communicated by a 
Gentleman intimately connected with Mexico, l6S 
XXIII. On the Illuminating Power of Coal-Gas. By Adam 
Anderson, Esq. A.M. F.R.S,E. Rector of the 
Academy, Perth, - - I 69 
XXIV. List of Rare Plants which have Flowered in the 
Royal Botanic Garden, Edinburgh, during the last 
three months. Communicated by Prof. Graham, 172 
XXV. Celestial Phenomena from January 1. to April 1. 
1825, calculated for the Meridian of Edinburgh, 
Mean Time. By Mr George Innes, Aberdeen, 173 
XXVI. Proceedings of the Royal Society of Edinburgh. 
(Continued from Vol. XL p. 209*) - 175 
XXVII. Proceedings of the Wernerian Natural History So- 
ciety. (Continued from Vol. XL p. 403.) 17^ 
XXVIII. Scientific Intelligence, - - 177 
geography. 
1. Heights of the principal parts of Mina. 2. Bellinghausen's 
Voyage, . - , . ib 
GEOLOGY. 
3. Remains of Fossil Quadrupeds in Chalk and Jura Lime- 
stone. 4. Humboldt’s New Geological Work, 5. Buch’s 
