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Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible.

Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible.

I finally reached the conclusion that mathematics was the study I was best fitted to...

I finally reached the conclusion that mathematics was the study I was best fitted to...

I had not yet gotten into the world of light. But I felt as one...

I had not yet gotten into the world of light. But I felt as one...

If my impressions are correct, our educational planing mill cuts down all the knots of...

If my impressions are correct, our educational planing mill cuts down all the knots of...

In 1858 I received the degree of D. S. from the Lawrence Scientific School, and...

In 1858 I received the degree of D. S. from the Lawrence Scientific School, and...

In 1860 a total eclipse of the sun was visible in British America.

In 1860 a total eclipse of the sun was visible in British America.

In October, 1865, occurred what was, in my eyes, the greatest event in the history...

In October, 1865, occurred what was, in my eyes, the greatest event in the history...

My father followed, during most of his life, the precarious occupation of a country school...

My father followed, during most of his life, the precarious occupation of a country school...

My father was the most rational and the most dispassionate of men.

My father was the most rational and the most dispassionate of men.

As the existence of a corps of professors of mathematics is peculiar to our navy,...

As the existence of a corps of professors of mathematics is peculiar to our navy,...

As years passed away I have formed the habit of looking back upon that former...

As years passed away I have formed the habit of looking back upon that former...

Astronomers are greatly disappointed when, having traveled halfway around the world to see an eclipse,...

Astronomers are greatly disappointed when, having traveled halfway around the world to see an eclipse,...

We are probably nearing the limit of all we can know about astronomy.

We are probably nearing the limit of all we can know about astronomy.

What we now call school training, the pursuit of fixed studies at stated hours under...

What we now call school training, the pursuit of fixed studies at stated hours under...

When about fifteen I once made a great scandal by taking out my knife in...

When about fifteen I once made a great scandal by taking out my knife in...

Whenever a total eclipse of the sun was visible in an accessible region parties were...

Whenever a total eclipse of the sun was visible in an accessible region parties were...

A suggestion had been made to me looking toward a professorship in some Western college,...

A suggestion had been made to me looking toward a professorship in some Western college,...

Aerial flight is one of that class of problems with which men will never have...

Aerial flight is one of that class of problems with which men will never have...