Minute marvels of nature : being some revelations of the microscope / exhibited by photo-micrographs taken by the author John J. Ward.

  • Ward, John J.
Date:
1903
Catalogue details

Licence: In copyright

Credit: Minute marvels of nature : being some revelations of the microscope / exhibited by photo-micrographs taken by the author John J. Ward. Source: Wellcome Collection.

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    CHAPTER V ANIMAL-PLANTS AND SEA-WEEDS Sea-weeds have no strong branches to support their weight— Sea-weeds that are not sea-weeds—Animal-plants— I he structure of ditto—Fossil species—Mediterranean corals— The polypes—Their resemblance to flowers and seeds— The hard red coral of necklaces, &c.— Polypes the builders and not man- Alga;, or sea weeds proper—Their structure Alga; with hard and stony fronds—Lime-builders Pp. lofl 131 CHAPTER VI INSECTS’ EGGS Eggs of insects present fascinating objects for microscopic inves- tigation Maggots no longer supposed to be spontaneously generated from putrefying substances Eggs of the common house-fly — Number of eggs deposited varies — Successive generations and production of living young--Aphides or “green flies—The hover-flies — The lacewing-fly — The wonderful eggs of birds’ parasites—Structure of insects’ eggs —Eggs of butterflies and moths—Where found—Instinct of the mother insect—Blunders made by insects in depositing their eggs—Varieties of form—-What purpose the artistic and microscopic sculpturings may serve . . . Pp. 132-156 CHAPTER VII ANIMAL PARASITES All living animals pestered more or less by parasites adapted to prey upon them—Insects no more exempt than larger ani- mals—Hyper-parasitism—Parasites which require several