The Unseen Universe, Or, Physical Speculations on a Future State

action animals appears atoms attempt become believe body brought called chapter Christ Christian conceive conclusion conditioned connected Continuity course Crown death direction discuss doctrine doubt earth Edition elements energy eternal ether existence experience fact force further future give given hand heat human hypothesis idea imagine immortality individual infinite instance intelligent invisible kind laws least less light living look machine mass material matter means method mind motion move nature object once origin particles pass perfect physical position possessing possible present principle probably produce Professor question readers reason regard remarks result scientific seen sense separate similar soul space species speculations spirit stars substances supposed theory things thought tion true truth ultimately unseen varieties various visible universe whole