 | Mrs. Marcet (Jane Haldimand), Thomas P. Jones - 1826 - 286 páginas
...examining fig. 2. Emily. I did not know that the pupil was susceptibli^ijf va lying its dimensions. Mrs. D. The construction of the eye is so admirable, that...Emily's eyes, as she sits looking towards the windows: the pupils appear very small, and the iris, large. Now, Emily, turn from the light, and cover your... | |
 | 1832 - 650 páginas
...of a circular form, whether it be expanded in the dark or contracted by a strong light. (Fig. 31.) The construction of the eye is so admirable, that...intensity of the light from injuring the optic nerve. The eyes suffer pain, when from darkness they suddenly come into a strong light; for the pupil being... | |
 | 1832 - 640 páginas
...of a circular form, whether it be expanded in the dark or contracted by a strong light. (Fig. 31.) The construction of the eye is so admirable, that...less, to the circumstances in which it is placed. Ina faint light the pupil dilates so as to receive an additional quantity of rays ; and in a strong... | |
 | Ireland commissioners of nat. educ - 1835 - 398 páginas
...the pupil of a circular form, whether it be expanded in the dark, or contracted by a strong light. The construction of the eye is so admirable, that...intensity of the light from injuring the optic nerve. The eyes suffer pain, when, from darkness, they suddenly come into a strong light ; for the pupil being... | |
 | 1836 - 424 páginas
...the pupil of a circular form, whether it be expanded in the dark, or contracted by a strong light. The construction of the eye is so admirable, that...intensity of the light from injuring the optic nerve. The eyes suffer pain, when, from darkness, they suddenly come into a strong light ; for the pupil being... | |
 | William Martin - 1838 - 368 páginas
...the pupil in a circular form, whether it be expanded in the dark, or contracted by a strong light. The construction of the eye is so admirable, that...is capable of adapting itself more or less to the circumtances in which it is placed. In a faint light the pupil dilates so as to receive an additional... | |
 | Jane Marcet - 1839 - 544 páginas
...examining fig. 2. EMILY. I did not know that the pupil was susceptible of varying its dimensions. MRS.B. The construction of the eye is so admirable, that...light the pupil dilates so as to receive an additional Kg. 3. Fiff.4. Fig. 6. quantity of rays, and in a strong light it contracts, in order to prevent the... | |
 | George Grant - 1849 - 328 páginas
...whether it be expanded in the dark, or contracted by a strong light. JThe construction of the eye is BO admirable, that it is capable of adapting itself,...intensity of the light from injuring the optic nerve. The eyes suffer pain, when from darkness they "come suddenly into a strong light ; for the pupil being... | |
 | Jane Marcet - 1858 - 630 páginas
...called the iris, ee, which, by its motion, always preserves the pupil of a circular form, whether it be expanded in the dark, or contracted by a strong light....Emily's eyes, as she sits looking towards the windows : the pupils appear very small, and the iris large. Now, Emily, turn from the light, and cover your... | |
 | Barbara T. Gates - 2002 - 700 páginas
...form, whether it be expanded in the dark, or contracted by a strong light. Emily FIGURE 53 Jane Marcet I did not know that the pupil was susceptible of varying...optic nerve. Observe Emily's eyes, as she sits looking toward the windows: the pupils appear very small, and the iris large. Now, Emily, turn from the light,... | |
| |
The construction of the eye is so admirable, that it is capable of adapting itself, more or less, to the circumstances in which it is placed. In a faint light the pupil dilates so as to receive an additional quantity of rays, and in a strong light it... 