Baily, Francis, repetition of the Cavendish experiment by, 146.
Beats in music, explanation of, 209.
Beggary in Bavaria banished by Rumford, 164.
Bernoulli's, Daniel, molecular theory of gases, 299.
Boston, blockade of, 110.
=Boyle=, Hon. Robert, birth, 8;
conversion, 11;
first air-pump, 17;
conception of the constitution of the air, 19;
experiments with the air-pump, 19, _et seq._;
argument on the cause of a vacuum, 23;
experiments establishing his law, 25;
statement of his law, 29;
observations on cold, 32,
and on the expansion of water in freezing, 33;
experiments on induced magnetism, 34;
the province of experimental science, 37.
Boyle's law, 29.
Brocklesby, Dr., death of, 208.
Brougham's criticisms of Thomas Young, 218.
Bumper, electrical, 80.