pneumatic tube

IMG:content-1248.png:[blocks in formation] Zool. (ed. Clark), ii. 386. pneu-măt-Ics, s. [PNEUMATIC.] 1. The same as PNEUMATOLOGY, 2 (q. v.). 2. Physics : The science which treats of the mechanical properties of air and other gases, investigating their weight, pre ure, elasticity, condensation, . Comprehended under it are descriptions of such machines as the air-gun, the air-pump, the diving-bell, . Air being a vehicle of sound, pneumatics includes also the science of Acoustics. pneumony Pneu-ma-to-mā-chi-ạng, s . pl . [Latin Pneu matomachi , from Greek Pneuma to machos =fighting with the Spirit; Pneuma =the [Holy] Spirit, and mache =fighting.) [MACED ON I AN (2), B.] pneu-ma-tom-ě-těr, s . [Pref. pneuma to- , an I Eng. meter.] An instrument for measuring the amount of air exhaled at one expiration.