PICKLES

are at times coloured with copper compounds. | mildest cases, slight swelling of the glands in the groin, These, which are poisonous, may be detected by inserting | preceded by malaise,are the only symptoms, and such cases, a bright steel knitting needle into the pickle jar fluid. If | occurring — dock labourcrs and the like, have often copper is present it will be deposited upon the needle. been mistaken for venereal disease, and an epidemic has [s. 394]