This page needs to be proofread.
CHAPTER II
PROTOZOA (One-celled Animals)
THE AMEBA
Suggestions.—Amebas live on the slime found on submerged
stems and leaves in standing water, or in the ooze at the bottom.
Water plants may be crowded into a glass dish and allowed to
decay, and after about two weeks the ameba may be found in
the brown slime scraped from the plants. An ameba culture
sometimes lasts only three days. The most abundant supply
ever used by the writer was from a bottle of water where some
oats were germinating. Use 1/5 or 1/6 inch objective, and cover
with a thin cover glass. Teachers who object to the use of
the compound microscope in a first course should require a
most careful study of the figures.
 | 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|First course in biology (IA firstcourseinbio00bailrich).pdf/246}}". Otherwise, if you are able to provide the image then please do so. For guidance, see Wikisource:Image guidelines and Help:Adding images. |  |
Fig. 9.—Ameba Proteus, much enlarged.
