text:  On such occasions the more powerful the microscope is that the critic can employ the better; not only because all suspicion of contrivance or design is thereby further removed but because proofs separately trifling are when united irresistible; and the circumstantial evidence to which courts of justice are compelled by the necessity of human affairs to recur in matters where the lives and fortunes of individuals are at stake is not only legitimate but indispensable before tribunals which have not the same means of investigation at their command