REFERENCES

Lucretius, The Nature of Things; translated by H. A. J. Munro.

Pliny, Natural History; translated by Philemon Holland.

Professor Baden Powell, History of Natural Philosophy.

Seneca, Physical Science; translated by John Clarke.

Vitruvius, Architecture; translated by Joseph Gwilt, 1826.

Vitruvius, Architecture; translated by Professor M. H. Morgan, 1914.