Later this month, The Boston Globe will start printing and delivering the Boston Herald — a move that will enable the tabloid to reduce delivery expenses. About 50 truck drivers and other delivery personnel will lose their jobs. Globe Publisher Christopher M. Mayer called it an “advantageous business opportunity” that makes sense given the overlap in both papers’ distribution. The Globe will deliver the Herald’s city edition Sunday through Friday and will print the paper’s full press run on Saturdays. The Globe will also start delivering other publications that the Herald currently distributes, including Barron’s magazine and New England editions of the New York Post and the Wall Street Journal. Printing and delivery work is a growing part of the Globe, which already prints a couple other papers in Massachusetts. Editorial operations at the Globe and the Herald will remain separate.