Note 461 — Chapter III · STRONGHOLDS.
Reading edition
Experiments on Whinstone and Lava, by Sir J. Hall, Bart. Trans. Royal Soc. Edin. vol. v. p. 45; Series of Experiments on the Action of Heat, vol. vi. p. 71.
Reading edition
Experiments on Whinstone and Lava, by Sir J. Hall, Bart. Trans. Royal Soc. Edin. vol. v. p. 45; Series of Experiments on the Action of Heat, vol. vi. p. 71.