Memoir on a Method ofJJoufe Painting, i'l^ 



If water from which the air is extricated by long continued boiling, be fliut up in glafs 

 veflels intircly filled with it and then frozen, they will burft by the expanfion, and nume- 

 rous air bubbles will be diffufed throughout the ice. The fame effeS takes place If frefh 

 diftillcd water is ufed. If water, warm from the ftill, be inclofed In exhaufted bottles 

 which will contain three or four times the quantity, and alternately frozen and thawed a 

 great number of times, a quantity of gafeous fluid will be produced, equal at leafl: in bulk 

 to the water employed. What the nature 6f this gas is I have not yet been able to de- 

 termine, as the quantity I procured was loft by accident ; I only know, that it did not 

 explode by the conta£l: of a lighted taper. During the freezing and thawing feveral curious 

 phaenomena took place. Upon the whole, the fubjedl is highly deferving attention, and it 

 feems furprizing that it has not been thoroughly inveftigated long before this time. 



R. H. 



III. 



Memoir en a Method of Houfe Painting with Milk; by AmONY Alexis Cadet-DE Vaux.* 



JL PUBLISHED in the Feuille du Cultivateur, but at a time when the weight of public 

 mifery abfotbed the thoughts of every individual, a procefs far painting, of Angular oeco- 

 nomy, which the misfortune of the times compelled me to fubftitute, inftead of painting 

 in diftemper. • 



One of my neighbours was repairing his country houfe. In which he employed fome old 

 wood work that neceflTarily required to be painted ; but the univerfal want of every article, 

 and more particularly of money, for it was in the time of the maximum and aflignats, did 

 not permit him to go to the expence. The amount of the colour would have been four 

 hundred francs. In this fituation he confulted me, and fortunately he applied to the pro- 

 per perfon : for I was employed painting a hot-houfe in my garden, at the time he called 

 to converfe with me. He found me painting without diftemper and without oil ; he ex- 

 prelTed his uneafmefs about his four hundred francs, on which head I foon removed his 

 anxiety, by afluring him that I would reduce the fum to a tenth part. Part of my hot- 

 houfe had been painted in the morning: he pafled the palm of his hand over this firft layer, 

 but I defired him to rub it with his great coat. It refifted like v.arnifh. He demanded my 

 fecret ; and as I keep no fecrets of this nature, but on the contrary am defirous of publifh- 

 ing every thing which can be of value in different branches of oeconomy, I gave him my 

 procefs. 



As I am not dextrous with the brufli, I fent the next day for a painter from Francon- 

 ville to paint the cieling and floor of my library. 



* Decade Phllofophique, No. 2S. An. IX. 



My 



