This section is from the book "Modern Buildings, Their Planning, Construction And Equipment Vol3", by G. A. T. Middleton. Also available from Amazon: Modern Buildings.
This room, when required, should not, as a rule, contain more than 600 square feet of floor space. It should be suitably fitted for instruction, and a fume closet provided if necessary in addition. An ordinary classroom may have a suitably fitted demonstration table. Special lecture-rooms are unnecessary in an ordinary elementary school.