00858nam0-22002771i-450-990000053050403321000005305FED01000005305(Aleph)000005305FED0100000530520011111d--------km-y0itay50------baitay-------001yySpinning topsrevised ed., with illustrated appendices on the use of gyrostats and the gyro-compassJohnPerry.LondonSociety for promoting christian knowledgeNew YorkMcMillan company1919155 p.ill.19 cmIn testa al front.: The romance of science531.34Perry,JohnITUNINARICAUNIMARCBK99000005305040332113 G 63 194610FINBCFINBCUNINAING01