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Updated: May 31, 2025
Accompanied by the mineralogist Gustave Rose, the naturalist Ehrenberg, well known for his travels in Upper Egypt and Nubia, and Baron von Helmersen, an officer of engineers, Humboldt travelled through Siberia, visited the gold and platinum mines of the Ural Mountains, and explored the Caspian steppes and the Altai chain to the frontiers of China.
I was ignorant at the time of the thousands of acute intellects engaged in the same pursuit as myself, and with the advantages of instruments a thousand times more powerful than mine. The names of Leeuwenhoek, Williamson, Spencer, Ehrenberg, Schultz, Dujardin, Schact, and Schleiden were then entirely unknown to me, or if known, I was ignorant of their patient and wonderful researches.
It is from this latter seat that the phosphorescence proceeds in Oceania pilata, the form which gives out such a light that Ehrenberg compared it to a lamp-globe lighted by a flame.
'The predominating forms, numerically, of one kind of dust, are also the predominating forms in all the rest, as Ehrenberg observes; and says further: 'Impossible as it is to conceive of all the storms now compared from 1830 to 1847, as having a continuous genetic connection, it is equally impossible also to imagine the masses of dust transported by them, with such a degree of similarity, not to have a genetic connection.... The great geographic extent of the phenomenon of a reddish dust nearly filling the atmosphere, and itself filled with organisms so similar, many of which are characteristic of South America, not only admits of, but demands a more earnest attention to the probable cyclical relations in the upper and lower atmosphere, whereby very great masses of fixed terrestrial matter, earths and metals, and especially flint-earths, chalk, iron, and coal, apparently heterogeneous, and yet related by certain peculiarities, are held swimming in the atmosphere, now like clouds thinly spread by whirlwinds or electricity over a broad space, and now condensed, and, like the dust of the fir-blossoms, falling in showers in every direction.
She remarked quietly: "You do not look as if it agreed with you very well, ma'am." Then I told her of my young child, and my hard journeys, and she decided to stay until she could earn enough to reach Tucson. And so Ellen became a member of our Ehrenberg family. She was a fine, strong girl, and a very good cook, and seemed to be in perfect health.
Before tea was ended, other visitors came in, and the orphan found relief from her confusion in the general conversation. While Dr. Rodney, the family physician, was talking to her about some discoveries of Ehrenberg, concerning which she was very curious, Mr. Leigh engrossed Mrs.
I am sure that Ellen, at least, never saw the comical side of it. When it was all over, I thanked Fisher, and Jack beamed upon me with: "You see, Mattie, my case of instruments did come in handy, after all." Encouraged by success, he applied for a pannier of medicines, and the Ehrenberg citizens soon regarded him as a healer.
Until lately, my reasons for considering the Pampaean formation to be an estuary deposit were, its general appearance, its position at the mouth of the existing great river the Plata, and the presence of so many bones of terrestrial quadrupeds: but now Professor Ehrenberg has had the kindness to examine for me a little of the red earth, taken from low down in the deposit, close to the skeletons of the mastodon, and he finds in it many infusoria, partly salt-water and partly fresh-water forms, with the latter rather preponderating; and therefore, as he remarks, the water must have been brackish.
The same author has observed that the recoil of the sea from a steep shore is injurious to the growth of coral, although waves breaking over a bank are not so. Ehrenberg also states, that where there is much sediment, placed so as to be liable to be moved by the waves there is little or no coral; and a collection of living specimens placed by him on a sandy shore died in the course of a few days.
And now Herr von Ehrenberg, the former colonel of artillery of Baden!... This fellow was unquestionably for good reason suspected of having betrayed to the General Staff of Italy the fortifications of Switzerland at St. Gotthard. When his residence was searched it was brought to light that Herr von Ehrenberg worked also in the employ of the Prussian police.
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