( 206 ) 



Subjects proposed for Honorary Premiums by the TTernerian 

 Natural History Society. 



Edinburgh, 2Qth April 1839. 

 The Wernerian Natural History Society offer the following 

 Honorary Premiums ; open luiconditionally to all scientific 

 naturalists. It is understood that the successful essays, and 

 such drawings and specimens as accompany them, become 

 the property of the Society : Further, that in the event of 

 the Society not publishing the essays, the authors may be al- 

 lowed to publish them on their own account. 



HYDROGRAPHY. 



1. Ten Sovereigns, era suitable piece of plate of that value, 

 for an approved Essay on the Temperature, Magnitude, Chemical 

 Composition, and Geological relations of the Springs of Scotland. 

 This Essay must be founded on the actual observations and expe- 

 riments of the Author. — Time, February 1844. 



2. Ten Sovereigns, or a piece of plate of that value, for an ap- 

 proved Essay on the Temperature, Colour, Chemical Composition, 

 Mechanical admixture, Magnitude, Velocity, and Alluvial formations 

 of any one of the following Rivers in Scotland, viz. the Tweed, Tay, 

 Dee in Aberdeenshire, or Spey. — Time, February 1841. 



GEOLOGY 



3. Ten Sovereigns, or a piece of plate of that value, for an ap- 

 proved Essay on the Erratic Blocks or Boulders of Scotland and 

 its Islands. 



N. B. The Author will be expected to treat of the Mineralogi- 

 cal and Palfeontological Characters, the Physical and Geographi- 

 cal Distribution of these Boulders, and, from the data thus afforded, 

 endeavour to account for their origin and distribution. A Map or 

 Maps illustrative of their distribution will also be required. — Time, 

 February 1841. 



4. Ten Sovereigns, or a piece of plate of that value, for an ap- 

 proved Experimental and Practical Essay on the Mineralogical 

 Constitution, and Chemical Composition of the Trap-Rocks of 

 Scotland. A collection of specimens required. — Time, February 

 1842. 



5. Ten Sovereigns, or a piece of plate of that value, for an ap- 

 proved Experimental Essay on the Chemical Composition of Al- 



