3 FEBRUARY 1877, Page 25

Manchester Science Lectures for the People : What the Earth

is Com- posed of By Professor Roscoe. (Macmillan and Co.)—The working- class of Manchester are highly favoured. In the winter months they can go and hear a course of popular scientific lectures delivered by the first professors of the day, for one penny each. These lectures are after- wards published in a cheap form, so that the hearers can read what they have already heard, and call to mind the experiments they have seen. These three lectures of the Professor of Chemistry at Owens College manage to introduce an extraordinary amount of information on both inorganic and organic chemistry, and the illustrations are first-rate. We do not doubt that they will be read by many others than the Manchester public.