Show MAKE tt IT HARI HARD FOR FORGER german scientific departments Depart menta te in direct war against dire dim foe of bui ness organ axt in all questions questa of lf disputed docu menta ment forgery 0 or r a alterations larm ions of writ to ton instruments instrument and it the like the gm ger man to scientific dep departments kitome or are of 1 1 in estimable lombi value no to I 1 the police t met mel putt elite davisson post writes in t the he sat arnay ray Evo evening liftig post th the age go of at a writing can be definitely ascertained the chemical structure of the ink can be d eter mined and consequently consequents th A time at w which inch the writing was made can be precisely arrived at in I 1 order der tor far a forger successfully to impose on the german authorities he would be compelled to 0 has have for far III MB site alterations aaion B the identical ink in which the original documents wore war written n pon proper P or chemical berm lal tests teats show a brilliant change 1 in the colors of certain inks thus logwood inks inka treated by th the a hy by aroch I 1 in test teat give purple red rese U tlona while it iron nutgall inks show how a b blue g green an color under this test when n gu all the II h it data at a 1 in respect p I 1 to commercial 1 and inks are assembled and known any sort 0 f fl f false l alteration lt tire becomes become an ex air colt redin g ay h hazardous don business billion th the paper used in frauds of this character has also been the subject of club elaborate to study and ad experiment all I 1 w watermarks water marks on paper are known 0 w I 1 inato with t the dates t es an and 1 issues correspond ing to any soa peculia peculiarity ity or ceone detect defect in the mark so t that h t though ho u g h one mi might h t be bb able to obtain paper or of identical we wa ter marks marka I 1 corresponding to the original a of f t the he forged instrument never nevertheless thole fergel d detects fee in I 1 the he issue of t the he paper of f that year might not be known to the torger these thes defects of a peculiar men known to the scientific depart ment melt of the police would disclose the th fraud it 1 la well known that water marks les a on pope paper may be imitated by devices such auch as gelatin process and the pressure and grease processes 1 but I such tr allatin bould old be quickly detect dete cd 1 in the laboratory at police headquarters ter in berlin or by any corn expert detent expert |