VI CONTENTS. 



Page 

 III. NATURAL HISTORY. 



MiNEBALOOY.— 9. Specimen of Chalcedony with a large Fluid Cavity. 10. 

 Analysis of Radiolite. By Professor Hunefeld. II. Analysis of Iron 

 sinter from Freibei^. By M. K. Kersten. 12. Analysis of Datholite 

 from the Harz. By Dr Du Menil. 13. Analysis of Marmolite from 

 New Jersey. By Mr Thomas Steel. 14. Analysis of Bismuth blende of 

 Breithaupt. By Professor Hunefeld. 1ft. Analysis of Leelite. By Mr 

 R, Mitchell, - - - - . 370—371 



Geology.— 16. Conclusion of the General Summary of the Geology of India. 

 By James C alder, Esq. 17- M. Raspail's Discovery respecting Belem- 

 nites, ... . 371—376 



XXX. List of Patents granted in Scotland since December 6, 1828, 376 



XXXI. Celestial Phenomena, from April 1st, to July 1st, 1829, - 376 

 XX XI I. Summary of Meteorological Observations made at Kendal in Decem- 

 ber 1828, and January and February 1829. By Mr Samuel Mar- 

 shall, - - - - , 378 



XXXIII. Register of the Barometer, Thermometer, and Rain-Gage, kept at 



Canaan Cottage. By Alex. Adie, Esq. F. R. S. Edinburgh, 380 



NOTICES TO CORRESPONDENTS. 



Our Correspondent in Mexico, who has been so kind as to transmit to us two 

 papers in this Number, is requested to favour us with the continuance of his corre- 

 spondence through the same Channel. 



We shall be happy to receive Mr Treoaskis^s paper on the bursting of Steam 

 Boilers. 



We have been disappointed in not receiving Dr Hartmann's promised Com- 

 munication. 



When Dr Hibbert returns from the Continent, he will no doubt enable us to 

 answer M's. inquiries respecting Auvergne. 



Mr Sankey's valuable paper entitled, " Theory of the action of Caloric in pro- 

 ducing the expansion of fluids and solids, with a formula for the modulus of gravity,'* 

 came too late for insertion in this Number, but will appear in No. I. of our New 

 Series. 



We have not seen the new Instrument called the Contrermrjil^ invented by Romer 

 of Paris ; but we may inform our Correspondent, that one of the agents for its sale is 

 Mr Frodsham of Grace-Church Street, well known as one of our ablest chronome- 

 ter makers. 



' Mr Smith's highly interesting Communication will appear in No. I. of our New 

 Series. 



In the arrangements for next Number, we shall follow X's advice as much as 



possible. 



