Excerpt from Distribution of Limnaea Emarginata, Say<br/><br/>In order to obtain all possible information in relation to Maine shells I made a special trip to Orono, Waterville, Portland Boston and Cam bridge, and was permitted to examine the different collections, but I am sorry to state that at neither ofthe places visited did I find a collection of the large pond snails of Aroostook. The specimens vary greatly in form, and of the many thousand varieties seen and collected, there are hardly two alike.
Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.