There was a problem when proofreading this page.
An image should appear at this position in the text. To use the entire page scan as a placeholder, edit this page and replace "{{missing image}}" with "{{raw image|Tree Crops; A Permanent Agriculture (1929).pdf/329}}". Otherwise, if you are able to provide the image then please do so. For guidance, see Wikisource:Image guidelines and Help:Adding images. |  |
FIG. 110. Top. Majorca. Heavy trees in the foreground, grafted oaks; feathery trees, almonds. The heavy trees on the steep hill at the back are oak (ilex), thinned out to make acorns for hog-fattening—FIG. 111. Center. An Appalachian valley in Central Pennsylvania. The steepness of the hillside field is submitted as evidence of widespread agricultural insanity—F1G. 112. Bottom. A grove of locusts (Robinia Pseudacacia) whose nitrogenous roots support a good stand of bluegrass on a shaly Allegheny Bodie in Central Pennsylvania where grass is rare. (Photos J. Russell Smith.)
