CHAPTER XII.
ASTRONOMERS AND STUDENTS IN HUMBLE LIFE: A NEW CHAPTER IN THE 'PURSUIT OF KNOWLEDGE UNDER DIFFICULTIES.' "I first learnt to read when the masons were at work in your house.

I approached them one day, and observed that the architect used a rule and compass, and that he made calculations.

I inquired what might be the meaning and use of these things, and I was informed that there was a science called Arithmetic.

I purchased a book of arithmetic, and I learned it.

I was told there was another science called Geometry; I bought the necessary books, and I learned Geometry.