PRESENT VALUE; PRESENT WORTH n.
The principal which, drawing interest at a given rate, will amount to the given sum at the date on which this is to be paid; thus, interest being at 6%, the present value of $106 due one year hence is $100.
QUILLWORT n.
Any plant or species of the genus Isoetes, cryptogamous plants with a cluster of elongated four-tubed rushlike leaves, rising from a corm, and containing spores in their enlarged and excavated bases. There are about seventeen American species, usually growing in the mud under still, shallow water. So called from the sh…
RINGWORM n.
A contagious affection of the skin due to the presence of a vegetable parasite, and forming ring-shaped discolored patches covered with vesicles or powdery scales. It occurs either on the body, the face, or the scalp. Different varieties are distinguished as Tinea circinata, Tinea tonsurans, etc., but all are caused by…