. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. 648 COMPARATIVE PHYSIOLOGY. L. Irtimatiia Of tiM tUw tad Digtonoe of 014« pro- oesM. by which we form a judgment of the size and dwtanoe of ''^rwrh:raSe:^y^wn(pa«e542) thev^a^^ both with the size and the distance of an object Knowing that two objects are at the same distance from the eye, we esti- ml thatXone is krger than the other when the image one To^B on the retina


. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. 648 COMPARATIVE PHYSIOLOGY. L. Irtimatiia Of tiM tUw tad Digtonoe of 014« pro- oesM. by which we form a judgment of the size and dwtanoe of ''^rwrh:raSe:^y^wn(pa«e542) thev^a^^ both with the size and the distance of an object Knowing that two objects are at the same distance from the eye, we esti- ml thatXone is krger than the other when the image one To^B on the retina is larger, or when the visual a^te it sub- is irreater than in the other case, and conversely. Thus. SttogTaTtwo persons ar^ at the distance of half a mile ^y,7one is judJTby us to be smaller than the othd^im%ifectlyof the position of an object with b^e^e LrSiJon attempting to stick a pin into a ^^^tam s,r^^ thread a needle, cork a small bottie, et«., when o^ejy*"^*^ the use of one eye alone we can form an idea of Z^ve of a solid body ; though, in the case of such as a«» yJ^conS^, this process is felt to be both laborious and im- ^^m the limit«d natu«» of the visual fleW^^ *°'Jf^ yision, it follows that we can not with one eye «»«l«»Uy ^ r^; all th. parts of a solid that is tum^ ^^^^^^^Z rS practiJrone may learn t» define for himself what he •^SSi f^g^*« «u^ following results from the c^W tio^ immtozg, of two others, which answer t» the images fall- inir on the right and on the left eye respectively. ___,,^ ^iro^eTLt such fusion shall take Pj^-^tT^ 2J images must fall on identical (corresponding) parts of the '^-is well known, the pictim- used ^r jtereos«>pBs ^ diffeint views of the one object, as represented on a flat sur-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the


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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1890, bookyear1890