^dt.:vmn Soc'iefy at Haarlem. 273 



<idered as peculiar to one breed, or merely as a lufus nafune i 

 and whether, among all thefe breeds, there is one whieh ori- 

 ginally belongs to Holland ?" 



The follow ing queftion, firft propofed in 17915, and repeated 

 in 1799, is extended to the firft of November 1802 : 



*' A natural hiftory and phyfical defcription of the whale, 

 which tnay ferve to explain and point out the beft means for 

 difcovcrlng the places where thefe animals are to be found, 

 as well as the eafieft and furett means either known p.nd ufcd, 

 or that can be employed, for immediately killing them, and 

 of getting pofleffion of them in the fpeedieft and fafeft 

 manner?'* 



The following queftions, the firft propofed in 1790, the 

 fecond in 1794, the third and fourth in x795> are ftiU con- 

 tinued for an unlimited period : 



" I. What have the lateft chemical difcoveries taught cbn- 

 cernins; the nature of fermentation ? and what advantage can 

 be derived from this knowledge in regard to certain manu- 

 faftures in which fermenting fubftances are employed ? 



'*' II. What have we been taught by experience in regard 

 to the utility of certain animals, particularly in the Nether- 

 lands, which, according to appearance, are deftru£live ? and 

 what means muft be employed to extirpate them ? 



" III, What indigenous plants, the virtues of which afe 

 as yet very little known, might be ufed with advanf^age iti 

 our materia medica, and be fubftituted for foreign plants?" 



The papers whieh the Society expefts on this queftion, 

 muft contain proofs of the virtue and advantages of thefe in- 

 dicrcnous plants, not merelv from the teftimonv of foreigners, 

 but from experiments and obfervations made originally in 

 thefe provinces. 



*' IV. What indigenous plants, not yet ufcd, might be em- 

 ployed as good and wholefome nourifliment ? and what nu- 

 tritive foreign plants might be cultivated in the United Pro- 

 vinces ?" 



The Society requefts that the competitors will compnefs 

 their papers as much as poffible, and omit every thing that 

 does not cfTentially relate to the queftion. All the members 



Vol. VII. N n of 



