120 =D. Boboulieff—Dissipation of Electricity in Gases. 
4. Influence of the size, configuration and conductibility of the body. 
Reiss* (pp. meh ek “The dissipation does not depend on 
these circumstance 
Matteuci (p. 406) : “The laws and the semen a the dis- 
sipation are independent of the matter of the bodi 
Dellmann (p. 344): “The dissipation does not depend on the 
size, form and matter of the electrified body.” (p. 346): “The 
dissipation i is the same in conductors and non-conductors.” 
5. Influence of the kind of electricity. 
Biot, repeating Reiss’s experiments, came to the same opin- 
ion,t “that the coefficient of dissipation does not depend on 
the sign of the electricity.” 
Matteuci (p. 408): ‘The dissipation and its laws are the same 
for both kinds of electricities, as well in dry gases as in the air; 
but in arog) charged bodies the negative electricity disappears 
much soo 
SS (p. — ‘The dissipation does not depend on the 
sign of the electricity.” 
Warburg (p. 599): “The dissipation of electricity of both 
signs is completed with the same rapidity.” 
6. Influence of the temperature. 
Matteuci (p. 411): “ In dry air the dissipation augments with 
increased temperature.” 
cf Bunn of humidity. 
Reisst testifies: “That age od a dissipation diminishes 
with the increased dampness of the 
Matteuci (p. 421): ‘In air of the same temperature, and under 
the same pressure, the dissipation increases with the quantity of 
suspen aqueous vapor; but this augmentation does not In 
crease in proportion to the cube of the suspended vapors, as 
concluded by Coulomb from his too few experiments.” 
Dellmann (p. 541): “The dissipation does not depend on the 
percentage of moisture in the air, but on the quantity of the 
vapor included in one cubic foot of the air; and in i ag RE 
to the increase of this ee the dissipation in 
Tags a this, ree ie “ ee te dissipation 3 is espe- 
* Die Lehre von der Reibungs electricitat, Bd. i, s. 106-147. 
Riess, Bd. i, a 113-114. 
Reiss, Reibungs electricitat, p. 
