...all-invincible enemy, the paucity of light in powerful magnifiers. After a few moments silent thought, Sir John diffidently inquired whether it would not...object of vision ! Sir David, somewhat startled at '-he originality of the idea, paused a while, and then hesitatingly referred to the refrangibility...

...all•invineible enemy, — the paucity of light in powerful magnifiers. After a few moments' silent thought, Sir John diffidently inquired whether it would not...adduced the example of the Newtonian Reflector, in whieh the refrangibility was corrected by the second speculum, and the angle of incidence restored...

...allinvincible enemy, — the pancity of light in powerful magnifiers. After a few moments' silent thought, Sir John diffidently inquired whether it would not...somewhat startled at the originality of the idea, pansed awhile, and then hesitatingly referred to the rcfrangibility of rays, and the angle of incidence....

...at the originality of the idea, pansed awhile, and then hesitatingly referred to the rcfrangibility of rays, and the angle of incidence. Sir John, grown...the example of the Newtonian Reflector, in which the rcfrangibility was corrected by the second speculum, and the angle of incidence restored by the third....

...allinvincible .enemy, — the pancity of light in powerful magnifiers. After a .few moments' silent thought, Sir John diffidently inquired whether it would not be possible to effect a transfusion of artificial liyht throuyh the focal object of vision/ Sir David, somewhat startled at the originality of the idea,...

...of light in powerful magnifiers. After a few moments' silent thought, Sir John diffidently enquired whether it would not be possible to effect a transfusion...John, grown more confident, adduced the example of the 1 The , , r,-,-s' tale is, that the man was sent to the moon by Moses for gathering sticks on the Sabbath,...

...of light in powerful magnifiers. After a few moments* silent thought, Sir John diffidently enquired whether it would not be possible to effect a transfusion...John, grown more confident, adduced the example of the 1 The nurses' tale is, that the man was sent to the moon by Moses for gathering sticks on the Sabbath,...

...of light in powerful magnifiers. After a few moments' silent thought, Sir John diffidently enquired whether it would not be possible to effect a transfusion...artificial light through the focal object of vision I Sir David, somewhat startled at the originality of the idea, paused awhile, and then hesitatingly...

...all-invincible enemy, the paucity of light in powerful magnifiers. After a few moments' silent thought, Sir John diffidently inquired whether it would not...somewhat startled at the originality of the idea, paused a while, and then hesitatingly referred to tlie refrangibility of rays and the angle of incidence....

...paucity of light in powerful magnifiers. After a few moments1 silent thought, Sir John di flklently inquired whether it would not be possible to effect...somewhat startled at the originality of the idea, paused a while, and then hesitatingly referred to the refrangibility of rays and the angle of incidence. Sir...