A MAGAZINE OF LITERATURE, ART, AND POLITICS. IT is my intention, in this series of papers, to give the history of the progress in Natural History from the beginning, — to show how men first approached ...

Such facts should stimulate all our young students to embryological investigation as a most important branch of study in the present state of our science. But while there is this structural gradation ...

Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...

Methods of capturing and handling bats / Thomas H. Kunz, Robert Hodgkison, and Christa D. Weise -- Methods and devices for marking bats / Thomas H. Kunz and Christa D. Weise -- Radiotelemetry : ...