HIGH SPEED DIESEL ENGINES. Read before the British Association at Blackpool on 15th September, 1936.

25x17cm. Soft cover, staple bound. A review of Ricardo's work on the high speed diesel since about 1920. 16pp including title-page. Cream paper wrappers, front titled in black. Light crease of length 5cm across lower outer corner of front wrapper, and single shorter & lighter creases across corresponding corners of first four leaves of contents. Two parallel short creases, the longer of length 2cm, across lower outer corner of rear wrapper. First three leaves and final leaf of contents lightly spotted towards upper outer corners. GOOD+ copy.