A Google user
This by far, a classic, most needed, and read by the greatest scientists of all times. From Maxwell, to Carnot, to Lavoisier. It gave the original version of relativity which was often commented on by the Great Nikola Tesla himself. Einstein then added a small corrected version of this. Boscovich was Croatian, and his theory was well known to fellow Croatians like Tesla and Einstein's wife Mileva Einstein.
Boscovich was sure to have influenced these great minds, and continues to this day to sculpt other great minds. Definitely a must read for any chemist, physicist, or even engineer.
I personally cannot work without my Boscovich references.