by emaciation, weakness, an unnatural paleness, colorless lips and gums,
and the general symptoms of exhaustion, when it cannot be traced to
any other legitimate cause, as internal disease, worms, grief, overwork,
poor air or poor food, and when it is not speedily removed by change
of air or appropriate remedial measures, may safely be attributed to
solitary vice, no matter how far above natural suspicion the individual
may be. Mistakes will be rare indeed when such a judgment is pronounced
under the circumstances named.