Levere, Trevor H (July 1977). "Dr Thomas Beddoes and the Establishment of His Pneumatic Institution: A Tale of Three Presidents". Notes and Records of the Royal Society of London. 32 (1): 41–49. doi:10.1098/rsnr.1977.0005. PMID11615622.
Levere, Trevor H (July 1977). "Dr Thomas Beddoes and the Establishment of His Pneumatic Institution: A Tale of Three Presidents". Notes and Records of the Royal Society of London. 32 (1): 41–49. doi:10.1098/rsnr.1977.0005. PMID11615622.