ltimately turning to the solid advantage of mankind." I
listened to his statement, which was delivered without any presumption
or affectation, and then added that his lecture had removed my
prejudices against modern chemists; I expressed myself in measured
terms, with the modesty and deference due from a youth to his
instructor, without letting escape (inexperience in life would have
made me ashamed) any of the enthusiasm which stimulated my intended
labours. I requested his advice concerning the books I ought to
procure.

"I am happy," said M. Waldman, "to have gained a disciple; and if your
application equals your ability, I have no doubt of your success.
Chemistry is that branch of natural philosophy in which the greatest
improvements have been and may be made; it is on that account that I
have made it my peculiar study; but at the same time, I have not
neglected the other branches of science. A man would make but a very
sorry chemist if he attended to that department of human knowledge
alone. If your wish is to become really a man of science and not
merely a petty experimentalist, I should advise you to apply to every
branch of natural philosophy, including mathematics." He then took me
into his laboratory and explained to me the uses of his various
machines, instructing me as to what I ought to procure and promising me
the use of his own when I should have advanced far enough in the
science not to derange their mechanism. He also gave me the list of
books which I had requested, and I took my leave.

Thus ended a day memorable to me; it decided my future destiny.

Chapter 4

From this day natural philosophy, and particularly chemistry, in the
most comprehensive sense of the term, became nearly my sole occupation.
I read with ardour those works, so full of genius and discrimination,
which modern inquirers have written on these subjects. I attended the
lectures and cultivated the acquaintance of the men of science of the
university, and I found even in M. Krempe a great deal of sound sense
and real information, combined, it is true, with a repulsive
physiognomy and manners, but not on that account the less valuable. In
M. Waldman I found a true friend. His gentleness was never tinged by
dogmatism, and his instructions were given with an air of frankness and
good nature that banished every idea of pedantry. In a thousand ways
he smoothed for me the path of knowledge and made the most abstruse
inquiri