^{page 78 note 1} Described by MrWhitaker, in the Geological Magazine, Vol. VI., p. 438.Google Scholar

^{page 78 note 2} Quart. Journ. Oeol. Soc, vol. vi., p. 87, 1849.Google Scholar

^{page 79 note 1} British Fossil Mammals and Birds.

^{page 80 note 1} Mr W. H. Bensted long ago called attention to the occurrence of bands of spicula in the Kentish Ragstone Quarries at Maidstone. The workmen suffered with inflammation in their hands, which Mr. Bensted discovered to be due to the irritation caused by these fossil-sponge spicules penetrating the skin.