re PE ahaa Bulletin 216 is a 64-page manual of Dravo material handling installations covering a wide variety of applications including ore and coal bridges and unloaders, gantry cranes, floating cranes, whirlers, hoists, etc. Ask for a free copy on your letterhead. 516 oe ame The list of bridge and Crane installa- tions by Dravo 'Corporation includes some of the largest and best known in- dustrial firms in the country as well as important government organizations. Our large engineering organization and. resources are at your disposal. We are prepared to»go over your material hhandling problems and-to design and construct equipment which will solve your problem at minimum expense con- sistent with long service and low Operating cost.