THIS little book, according to its preface, has been written for students in optics, and the author guarantees the precision of the facts therein contained on the ground that Mr. Lindsay Johnson has ...

The intricacy and seeming perfection of the eye, both as an object of anatomical beauty and as a working machine, have worried and intrigued scientists, philosophers and zealots, especially during the ...

The second article in a series looking at the human senses explores vision by examining eye anatomy and physiology, as well as the visual pathway. This is a Self-assessment article and comes with a ...