I found it possible to observe at least the superficial capillaries of muscles both in the frog and in mammals through a binocular microscope, using strong reflected light as a source of illumination. Resting muscles observed in this way are usually quite pale, and the microscope reveals only a few capillaries at fairly regular intervals.
August KroghRelated topics
few found frog light microscope observe possible quite source superficial using wayRelated quotes
There will... be natural propriety in using an eastern light for bedrooms and libraries, a western light in winter for baths and winter apartments, and a northern light for picture galleries and other places in which a steady light is needed; for that quarter of the sky grows neither light nor dark with the course of the sun, but remains steady and unshifting all day long.
Vitruvius
After reading all that has been written, and after thinking all that can be thought, on the topics of God and the soul, the man who has a right to say that he thinks at all, will find himself face to face with the conclusion that, on these topics, the most profound thought is that which can be the least easily distinguished from the most superficial sentiment.
Edgar Allan Poe
The expectation that every neurotic phenomenon can be cured may, I suspect, be derived from the layman's belief that the neuroses are something quite unnecessary which have no right whatever to exist. Whereas in fact they are severe, constitutionally fixed illnesses, which rarely restrict themselves to only a few attacks but persist as a rule over long periods throughout life.
Sigmund Freud
My attitude toward punctuation is that it ought to be as conventional as possible. The game of golf would lose a good deal if croquet mallets and billiard cues were allowed on the putting green. You ought to be able to show that you can do it a good deal better than anyone else with the regular tools before you have a license to bring in your own improvements.
Ernest Hemingway
Whoever controls the volume of money in any country is absolute master of all industry and commerce.... And when you realize the entire system is very easily controlled, one way or another, by a few powerful men at the top, you will not have to be told how periods of inflation and depression originate.
James A. Garfield