On the Anion of GaJvanzfm^ &c, 519- 



Of the SucccJJlon of TVinds. 



Well eftabliflied general laws on this head would be ex- 

 tremely ufeful, as we might then forefee what wind might 

 next be expedled. Befides the general fucceffion in an opea 

 country, it is probable there is a local, confined to certaia 

 Situations. 



Gentil remarks, that in the fouthern latitudes of our hemi- 

 fphere, a north-eall is fucceeded by an ea(l, foulh-eaft, and 

 fouth. According to La Cotte, the order of fucceffion in the 

 middle latitudes is fouth-weft, north, weft, north-eaft, fouth, 

 north-weft, eaft, fouth-eaft. (Roz. Journ. xxxix. p. 267.) 



Of the Scirocco. 



This is a fouth or fouth-eaft wind, known in the fouthem 

 parts of Italy, Sicily, and Malta, diftinguiflied by peculiar 

 debilitating eifefts, well defcribed by Brydone, and by Do- 

 lomieu in his Treatife on the Temperature of Malta. The 

 latter has ftiown that its malignity refults from the conftitu- 

 tion of the air it conveys, and not merely from its tempera- 

 ture, which is variable, from "55° to 80''. It contains a much 

 fraaller proportion of oxygen than air ufually does. The 

 conftitution of the African wind, called harmattan, is as yet 

 unknown; it is, at leaft on land, loaded with fome unknowa 

 imdiffblved vapour, and is much hotter and drier than the 

 fctracco, but not debilitating, and even wholefome for ani- 

 mals; for though it parches their (kin, it deftroys infe£lion 

 and cures feveral diforders. (See Phil. Tranf. 1781, p. 46, 

 &c.) Its diredlion is alfo weftwards. 



LVTI. Report prefenfed to the Clafs of the Exafi Sciences of 

 the Academy of Turin, January iZ, 1^03, on the Aiiion of 

 Galvamfni; and the Application of this Fluid and of EleC" 

 tricity to Medicine. By A. M. Vassalj-Eandi *. 



X HE Galvanic experiments made on the lolh ard 14th 

 of Auguft lad, \n the prefcnce of a great many fpeftators, by 

 Giulio, Rod), and myfelf, on the head and trunk of three 

 decapitated criininais, an account of which has been pub- 

 liftied, gave rife to feveral queftions in regard to this agent, 

 and by analogy rofpe6ting eledlricity. 'Ihci'e two fluid:*, 

 and the ufes to which they may be applied, have become a 

 eonimon fubjetil of convcifation among well-informed per- 



* Fr«m the Jvnrnal dc PLvfique, Germinal, an. u, 



7 ' fons. 



