Note 1 — Chapter I
Reading edition
: Turbinella rapa, formerly known as Voluta gravis used by the people of India to be sawn into bangles and anklets.
2: In 1845 an antique iron anchor was found under the soil at the northwestern point of Jaffna, of such size and weight as to show that it must have belonged to a ship of much greater tonnage than any which the depth of water would permit to navigate the channel at the present day.