Line art drawing of <a href="https://en.wikipedia.org/wiki/Bacter%C3%ACa" class="extiw" title="en:Bacterìa">bacteria</a>; from left to right: <a href="https://en.wikipedia.org/wiki/Coccus" class="extiw" title="en:Coccus">cocci</a>, <a href="https://en.wikipedia.org/wiki/Spirillum" class="extiw" title="en:Spirillum">spirilla</a>, <a href="https://en.wikipedia.org/wiki/Bacilli" class="extiw" title="en:Bacilli">bacilli</a>.
<a href="https://en.wikipedia.org/wiki/Pearson_Scott_Foresman" class="extiw" title="en:Pearson Scott Foresman">Pearson Scott Foresman</a>
Archives of <a href="https://en.wikipedia.org/wiki/Pearson_Scott_Foresman" class="extiw" title="en:Pearson Scott Foresman">Pearson Scott Foresman</a>, donated to the <a href="https://en.wikipedia.org/wiki/Wikimedia_Foundation" class="extiw" title="en:Wikimedia Foundation">Wikimedia Foundation</a>