If this is not done, future ages will certainly look back upon us as a people so immersed in the pursuit of wealth as to be blind to higher considerations.

I am decidedly of the opinion that in very many instances we can trace such a necessary connexion, especially among birds, and often with more complete success than in the case which I have here attempted to explain.

What birds can have their bills more peculiarly formed than the ibis, the spoonbill, and the heron?

To the mass of mankind religion of some kind is a necessity

To say that mind is a product or function of protoplasm, or of its molecular changes, is to use words to which we can attach no clear conception

I am thankful I can see much to admire in all religions.

It has been generally the custom of writers on natural history to take the habits and instincts of animals as the fixed point, and to consider their structure and organization as specially adapted to be in accordance with them.