D. Boboulieff—Dissipation of Electricity in Gases. 119 
Hlectricitiitsverlustes. Zeitschrift fiir die Mathematik und 
Physik, von Schlémilch, Kahl und Cantor, xi, 1866, pp. 325-354. 
Charault: Recherches sur la déperdition de l’électricité sta- 
tique par l’air et les supports. Comptes Rendus, vol. 1, pp. 
108-111. 
Warburg: Ueber die Zerstreuung der Elektricitit in Gasen. 
Poggendorff’s Annalen, B. exlv, s. 578-599.* 
1. Of the Coulomb’s Law expressed in the formula (1). 
Matteuci (p. 390) says: “The dissipation of electricity in pure 
and very dry air and gasest does not follow the formula and laws 
of Coulomb.” He determined his law by experiments carried 
on in damp air; within certain limits, the dissipation is certainly 
not in proportion to the quantity of electricity “contained in 
the body.” 
Dellmann (p. 336): ‘The absolute dissipation is proportional 
to the density of the electricity ; that is, it is according to Cou- 
lomb’s law.” 
Charault: “The dissipation always follows Coulomb’s law.” 
Warburg: “The dissipation of electricity in gases follows 
Coulomb’s law.” 
2. Influence of surrounding bodies. 
Matteuci (p. 889): The dissipation of the electricity depends 
upon the electric condition of the bodies found near the body 
under examination; the smallest loss is experienced when the 
helghboring bodies are charged with an electricity opposite to 
that in the body under examination. : 
_Charault says: “The dissipation follows Coulomb’s law in 
limited and unlimited spaces.’ 
3. The influence of the movement of the gases. — 
Matteuci says (p. 886): “The dissipation does not increase 
when the air is in motion, but, on the contrary, it diminishes ; 
and furthermore, this diminution is in proportion to the velocity 
of the movement of the air in relation to the body, and to the 
‘mount of the dissipation itself.” 
Deilmann (p. 845): “The dissipation does not depend on the 
Motion of the air.” 
* Received in Russia while the author was engaged in making his own experi- 
™ents on the sy 
t The electrical dissipation for an interval dt is, according to Coulomb’s law, 
pa. ! di. 
Am. Jour. Sct.—Turrp Serres, Vou. VII, No. 38,—Fes., 1874. 
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