210 Miscellanies. 



credited lo 813 depositors, of whom 418 only were of the laboring 

 class. — Rev. Encyc. Mars, 1832. 



2. Scientific premiums. — The Societe Hollandaise des Sciences, 

 at Harlem, offer their gold medal for the best memoirs on the fol- 

 lowing subjects for 1834. 



1. The cause of the formation of those sandy downs which rise 

 on different portions of the maritime coasts of Europe, and which 

 furnish a defence to a part of Holland against the sea. 



2. The nature of those soils which are called sour in agriculture ; 



and the best modes of improving them. 



3. Experimental results of the relative value of various vegetables 

 used as food for cattle. 



4. A critical examination of the trials or experiments relative to 

 the progressive increase of temperature in descending from the sur- 

 face of the earth. The connection of this increased temperature 

 with the warm springs found in various places. 



5. The efficacy of fumigations by means of chlorine and other 

 gases and their compounds, as preventives or correctives in conta- 

 gious or other diseases. , 



6. Experimental results of the application of heat in destroying 



contagious matters, in conformity to the views of Dr. Henry, of Man- 

 chester. 



7. More exact development of the efficacy or otherwise of vacci- 

 nation' as a preventive of small pox, or of its modified forms. 



8. On the causes of the motion of the leaves of certain plants, 

 either diurnally or more rapidly, as in Hedysarum gyrans, or from 

 direct contact as in sensitive plants, 



9. On the duration of vegetable life in grains or seeds, and the 

 best modes of preserving it. 



10. As the intoxicating qualities of vinous liquors do not depend 

 entirely on the relative quantities of alcohol they contain, but also on 

 the presence of a volatile, essential and acrid oil, what are the liquids 

 which contain the most of this oil, — can it be separated from them 

 is it the same or different in different vegetables, — what are the qual- 

 ities of this oil, — its antidotes, he. The gold medal is of the value 

 of one hundred and fifty Dutch florins, and when the memoir is 

 deemed worthy, an addition is made of one hundred and fifty florins. 

 The memoirs may be in Dutch, French, English, Latin or German, 

 and must be addressed to Dr. Van Marum, Perpetual Secretary of 

 the Society, at Harlem. — Bib. Univ. Aout, 1832. 



