METHOD OF EXTINGUISHING FIRE. \Qg 



"M. Van Marum himfelf fet in leading his affiftanis and dire6L Verbal procefsof 

 ing the operations of the pump, that he could prevail on them J^^od of ° 

 to face the danger, which they confidered as very dreadful. extinguilhing 



Therefult of the foregoing fafts is, that in applying the fire * 

 method of extinguifliing fire, the circumftances to be ob- 

 ferved are thefe, that, to extinguifh the moft violent fire, it is 

 only neceflary to wet the furface of the burning matter in the 

 part in which the flames are feen, and that for this purpofe 

 only a fmall quantity of water is needful, if the parts be wetted 

 in the proper manner. In operations of this kind, therefore, 

 particular attention mud be paid to throwing the water in fuch 

 a way, that the entire furface of the burning part fhall be 

 wetted and extinguifhed, and that in fuch a way that an extin- 

 guiflied part fhall never be left between two others which are 

 in flames ; for if attention be not paid to this, the heat of the 

 flames burning here and there will quickly change the water 

 with which the part has been wetted into fleam, and the whole 

 will again take fire. In order, then, to extinguifh a fire in all 

 cafes, no more water mull be thrown on the burning part than 

 is needful to wet its furface ; and this I conceive to be all that 

 is requifite to extinguifh a fire whatever may be the circum- 

 ilancesof its origin. 



VIII. 



Report, prefented to the Clafs of Accurate Knowledge of the Aca- 

 demy of Turin, in the fitting of the 2d Nivofe, (Dec, 23, 1802,) 

 in the Year 1 1 , on the Action of Galvanijm, and on the Appli- 

 cation of this Fluid, and that of Electricity, in the Healing 

 Art, by Antoine-Marie Vassali Eandi. * 



JL HE galvanic experiments, made the 22d and 26th of laft Hiftorical intr*. 

 Thermidor, before a confiderable number of fpe&ators, by duftion ' 

 your alTociates Giulio, Rofli, and myfelf, On the heads and 

 trunks of three perfons who had been decapitated, the report 

 of which you have caufed to be printed, excited many ques- 

 tions refpe&ing this agent, and, by analogy, on electricity. 

 Thefe two fluids, and their ufes, have furnifhed the fubjecl of 



* From the Journal de Phyfique, Germinal, An. XL 



the 



