fey ethers left commonly known-, *hough of ancient cfefe? anrf 

 laftly by observations of his own. He is far from flattering 

 himfeJf, however, that a /ketch like the prefent exhibits the 

 matter in a fuitable fight ; and was loon aware that a fubjeel 

 (o cxtenfivesmd fo complicated required maturer labours, 

 TV*wthar»D- To- fiH up many gaps, unfold various point s> and correct 

 ^j^^ 1 and extend others by farther refearches, new experiments, 

 and profound reflections, is an ample field of improvement ; 

 and this be will attempt, if bis powers and bi9 leifure wiH 

 permit. 



it would fikewife be t>fef«?, as well as juft, ii> ghe at the 

 feme time an abftraft of what we owe to the genius of the 

 great Newton, who opened the career in fucb an admirable 

 snanner, and to thofe phitofophers who have discovered new 

 fec%, or removed difficulties. Greater precision alfo mould 

 be introduced into the language which we employ refpe&ing 

 colours, proportionate to the increafeof our knowledge, and 

 the actual ftate of the arts and fciences. Laftly, in a fubjeel 

 like the prefect, it would not be too much to add ihe resources 

 €>i algebra and geometry to the treasures of experiment, and 

 if pofiible to the advantages of a better method. 



Jieport made by (lie Phyficai and Mathematical Clafs of the Injii- 

 tute in Anfxer to the Quefiion, whether thofe Manufactories, 

 from which a difugreeable Smell arifes, may 'prove injurious to 

 Health. Bead in the Sitting of January, 1805, by Mejfrs, 

 Guyion-Mouveac and Chaptal.* 



HE minifter of the home-department has confulted the 

 clafs on a queflion, the folution of which is of effentiai import 

 to our manufacturers. 



QgdEon, The object is to determine, whether the vicinity of certain 



manufactories can be injurious to health. 



J»snif«rtJrnce, The folution of this problem mud appear of the more con- 

 sequence, as, from the confidence which the decinons of the 

 Inftitute naturally merit, it may hereafter form the bans of 



* Tranflated from the Annates de Chimie, vol. LIV. p. S6, for 

 April, 18 OS. 



deci&ons 



