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Books Books 1 - 5 of 5 on ... it to a grindstone, and rotate it rapidly. The eye perceives neither color, but....  
" ... it to a grindstone, and rotate it rapidly. The eye perceives neither color, but orange, the secondary color. matters in the vitreous humor, popularly known as floating specks, or gossamer threads, look through a small pin-hole in a card at a bright... "
Intermediate Anatomy, Physiology and Hygiene: Including Scientific ... - Page 191
by Calvin Cutter, John Clarence Cutter - 1887 - 221 pages
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Comprehensive Anatomy, Physiology, and Hygiene: Adapted for Schools ...

John Clarence Cutter - Human anatomy - 1888 - 384 pages
...the letters of No. II. are seen at two feet distance, at the same angle ; and so on, up to No. XX. The accompanying test-line is No. X., and should be...be able to read it at eleven or more feet distant (463). VZBDFHKOS 460. NEAR LIMIT AND FAR LIMIT. In the normal (emmetropic) eye the near limit of...
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Young Folks' Physiology: A Revised Edition of Our Bodies and how We Live. An ...

Albert Franklin Blaisdell - Hygiene - 1892 - 412 pages
...threads, look through a small pin-hole in a card at a bright light covered by a ground-glass shade. 142. Test the eyes of the pupils by a set of Snellen's testtypes. The following test-line should be easily read at ten feet. Some pupils may be able to read it at a distance...
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Young Folks' Physiology: A Revised Edition of Our Bodies and how We Live. An ...

Albert Franklin Blaisdell - Hygiene - 1892 - 412 pages
...threads, look through a small pin-hole in a card at a bright light covered by a ground-glass shade. 142. Test the eyes of the pupils by a set of Snellen's testtypes. The following test-line should be easily read at ten feet. Some pupils may be able to read it at a distance...
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Our Bodies and how We Live: An Elementary Text-book of Physiology and ...

Albert Franklin Blaisdell - Hygiene - 1893 - 412 pages
...threads, look through a small pin-hole in a card at a bright light covered by a ground-glass shade. 142. Test the eyes of the pupils by a set of Snellen's testtypes. The following test-line should be easily read at ten feet. Some pupils may be able to read it at a distance...
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Comprehensive anatomy, physiology, and hygiene: adapted for schools ...

John Clarence Cutter - Physiology (Elements) - 1888 - 384 pages
...the letters of No. II. are seen at two feet distance, at the same angle ; and so on, up to No. XX. The accompanying test-line is No. X., and should be...be able to read it at eleven or more feet distant (463). VZBDFHKO 460. NEAR LIMIT AND FAR LIMIT. In the normal (emmetropic) eye the near limit of...
Full view - About this book




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