All uronoaal mniit be made In duplicate, and be socotupanied with the oath of allegiance of the party or parties, unites it, naa airenuy man piaccu on nie In this office. - i No bids except In the form prescribed will lie received, and only from producers or parties regularly engaged in the liiHlneaa Tbe ran name ana I'oetomce mum oi eaca Diaaer sunt be written in the proposals.