Source Book in Mathematics

Rating:
Summary: many original papers
Review: For students of the history of maths, Smith provides you with a very convenient reference. He has gone back to many of the original papers by Newton, Pascal and others, and gathered 125 of these into this book. You can search for insight into how those luminaries made their important discoveries. As an added utility, the papers have been translated into English.

An amazing time saver. For he lets you access the papers without any intermediary. The alternative would be to spend months searching in some large research library. And also probably having to order copies made from other libraries. At non-trivial cost in time and money.