278 The Royal Bohemian Society of Learning. 



portion of cases the inoculated persons are still liable to the 

 small -pox. To guard against accidents in the course of 

 life, re-inoculation is recommended. The only question 

 now is, whether vaccine inoculation will be preferred to the 

 variolous subject to a second insertion of variolous or vaccine 

 matter. At any rate, the institution has discharged its duty 

 in declaring the risque incurred of not testing subjects aftef 

 the cow-pock inoculation, so that no reproach can justly be 

 offered in the event of any vaccinated person in the course, 

 of life being seized with the small-pox. 



SOCIETY OF ARTS AND SCIENCES OF GRENOBLE. 



This society has offered a prize of 500 franks for the best 

 treatise upon the Mineralogy of the Canton of Loysans in 

 the department of Isere. 



TEYLERIAN SOCIETY AT HAARLEM. 



The following is announced as a prize question by the 

 above society : (i What do we know historically of the altera- 

 tions which the earth has undergone in some districts in 

 consequence of the flood, and of the variety of causes which 

 occasioned these alterations ?" 



The answer must be sent in to the society on or before 

 the 1st April 1807, and the prize is a gold medal of the 

 value of 400 Dutch guilders. 



THE ROYAL BOHEMIAN SOCIETY OF LEARNING. 



This society having as yet received no satisfactory answer 

 to the prize question announced by them in April 1804, 

 have again offered a prize of 700 golden ducats for the best 

 answer to the following question : " By what method can 

 the various adulterations of the different necessaries of life 

 be best ascertained or lessened, by radical examination, or 

 otherwise?" 



The answers must be sent to the director of the Royal Bo- 

 hemian Society at Prague, on or before the 1st of June 

 3807. 



XLV. In- 



