Margaret M. Hutchinson, Children as naturalist, Londres, G. Allen & Unwin, 1947, p. 144.
Collections to make
Shells.
Empty Caddis cases.
Larval skins of Dragonflies, Mayflies, etc.
Margaret M. Hutchinson, Children as naturalist, Londres, G. Allen & Unwin, 1947, p. 144.
Collections to make
Shells.
Empty Caddis cases.
Larval skins of Dragonflies, Mayflies, etc.