it, dozens parts of leaves. In other instances we find plants pro- recourse to the mechanical method of inflating the of other instances of protective prickliness might be whole body with air, or with water, if it cannot reach cited. The above examples, however, are sufficient to the surface… … ary circuits of al- fish furnished 4. Typical Cactus. ternating - curreni with prickly 5. Teasel Heads. 6. Sea Urchin. transformers and shells, seem to ob- their respective ject to being lines. It must be cracked in this of simple design. manner, for, when of substantial con- a hungry fish,…
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![An illustration from Zoology of New York; or, The New York fauna [Series: Natural history of New York] (1842)](https://img.insideoutlibrary.com/img/200/nypl-nypl_adb54360c60d-256-1.webp)
