diatomaceae

He crushed through, and the infinite dust of infusoriae and diatomaceae choked his vision.

Lippincott's Magazine of Popular Literature and Science Volume 12, No. 28, July, 1873 Various

It was caused by diatomaceae, minute algae, which under the microscope revealed delicate threads gathered in tiny bundles, and containing rings, like blood-disks, of that curious coloring-matter in tiny tubes.

Lippincott's Magazine of Popular Literature and Science Volume 12, No. 28, July, 1873 Various

There are also great masses of limestone growing in some seas, chiefly composed of corals and shells, or, as in the depths of the Atlantic, of chalky mud made up of foraminifera and diatomaceae.

The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Various

In certain geological formations, the diatomaceae deposit, at the bottom of fresh-water ponds, beds of silicious shields, valuable as a material for a species of very light firebrick, in the manufacture of water-glass and of hydraulic cement, and ultimately, doubtless, in many yet undiscovered industrial processes.

Earth as Modified by Human Action, The~ Chapter 02 (historical) 1874

An attentive study of the conditions favorable to the propagation of the diatomaceae might perhaps help us to profit directly by the productivity of this organism, and, at the same time, disclose secrets of nature capable of being turned to valuable account in dealing with silicious rocks, and the metal which is the base of them.

Earth as Modified by Human Action, The~ Chapter 02 (historical) 1874

The low aquatic diatomaceae and confervae, together with the lowest fungi and lichens, occupy a similar position in the vegetable kingdom, filling places in nature which would be left vacant if only highly organised plants existed.

Darwinism (1889) Alfred Russel Wallace 1868

If one acarus can live upon strychnine, then it is not impossible that mineral acids should be harmless to others; the germs might be carried through sulphuric acid in air without coming into contact with the acid, as air would pass through in bubbles, in the centre of which they might be suspended; or if like the diatomaceae, they were coated with silex, they might come into contact with it and resist its action.

Story of Creation as Told By Theology and By Science 1854

An attentive study of the conditions favorable to the propagation of the diatomaceae might perhaps help us to profit directly by the productivity of this organism, and, at the same time, disclose secrets of nature capable of being turned to valuable account in dealing with silicious rocks, and the metal which is the base of them.

The Earth as Modified by Human Action George P. Marsh 1841

In certain geological formations, the diatomaceae deposit, at the bottom of fresh-water ponds, beds of silicious shields, valuable as

The Earth as Modified by Human Action George P. Marsh 1841