Edward B. Knobel, The turtles, snakes, frogs and other reptiles and amphibians of New England and the north… (1896)
“ Even the dangerous ones only use their terrible weapons in self-defence. Turtles and frogs are often regarded as if void of feeling and ruthlessly tortured. Toads and salamanders, useful insect-destroyers, are truly homely to look at, but hiding under ground or beneath stones seem to try their best not to hurt our feelings. ”
Edward B. Knobel, Ferns and evergreens of New England… (1895)
“ Compare general shapes, stems, and points with drawings on the black-ground plates; also lower leaflets with detail drawings in regard to veins, sawteeth, points, and fruit dots. The drawings are all about one-third natural size. Key to Ferns (Filices) . Stem not forked. The Ferns have been classified by their fruit, which consists of minute one-celled powder-like spores in a case (sporangium) . The sporangia are often clustered into round or oblong dots (sori) , and these are sometimes covered by a thin skin (indusium) . ”
Edward B. Knobel, The turtles, snakes, frogs and other reptiles and amphibians of New England and the north (1896)
“ Length, twenty-four inches; dull blackish-brown, often covered with moss; head, large: eyes, near together, looking upwards; neck beset with warts; plates of shield with slightly embossed lines and showing ridge of backbone; hind edge of shield with large saw like teeth; lower shield, small; tail crested with horny large teeth. Found in waters everywhere; rarely on land, except in breeding time. ”
