  The investigation of evaporating liquid drop deposited onto a flat surface is
of great importance for physical, engineering and medical applications. Novel
analytical expressions are proposed to calculate the evaporation rate of
sessile drop (mass loss per unit surface area per unit time) and total
evaporation rate (mass loss per unit time). To obtain these results, the H.M.
Macdonald's solution for a flat wedge was transformed by method of inversion in
a sphere originally developed by J.C. Maxwell in the Treatise on Electricity
and Magnetism with further derivation the solution for a lens based on
consideration given in bipolar coordinates by G.A. Grinberg. These solutions
are mathematically equivalent to expressions proposed earlier by Yuri O. Popov
[Phys. Rev. E 71, 036313 (2005)], but, in some cases, probably, the new
solutions can be more useful from a computational point of view.
