Show howard AT ambruster of new york arsenic and calcium arsenate consultant who spent some time in salt lake early last spring studying certain phases of the arsenic situation and who addressed the chamber of commerce on the subject has just issued a pamphlet under the title of arsenic calcium arsenate and the boll weevil the publication embraces practically all of the papers prepared and addresses made by mr ambruster on the subject during b the past tw years As the author is probably the best posted man in the country on the business of insecticide manufacture particularly ss as it relates to the arsenical products and compounds a world of valuable information for those interested can be obtained through a reading of the forty odd page 6 pamphlet just is sued issued by the barr erhardt press west 1 ath street new york it costs 50 cents |