...Communication lines were broken, roads blocked, gas and electricsupply systems paralyzed and the railroads helpless... 
Various 「Astounding Stories, August, 1931」
...I state the fact exactly as it opened to my own mind, for it was only now that I apprehended the true form of the river systems and continent...
David Livingstone 「Missionary Travels and Researches in South Africa」
...The peonage systems in parts ofthe United States and the labor systems of many of the Africancolonies of Great Britain and Germany illustrate this phase of solution...
W.E.B. Du Bois 「The Negro」
...Slavery, like all other great systems of wrong, founded in the depths ofhuman selfishness, and existing for ages, has not neglected its ownconservation...
Frederick Douglass 「Collected Articles of Frederick Douglass」
...Since the days of Solomon and Pythagoras, imagination has been exhausted in guessing out social and psychological laws; all systems have been proposed...
P. J. Proudhon 「What is Property?」
...Now, all systems exist only on certain conditions...
P. J. Proudhon 「What is Property?」
...I have wandered through a whole encyclopaedia of systems...
P. J. Proudhon 「What is Property?」
...Lamennais embraces all systems, and supports all opinions...
P. J. Proudhon 「What is Property?」
...Raybaud, who STUDIES SYSTEMS, fails to see the very thing he ought first to recognize,—namely, that systems are the progress of the mind towards the absolute...
P. J. Proudhon 「What is Property?」
...Professional pedagogy knows nothing of it, the systems ofeducation are being arranged into files, classified and numbered...
Various 「Mother Earth, Vol. 1 No. 2, April 1906」
...To show cells associated even more closely than incœlenterates, forming tissues and systems of organs...
Worrallo Whitney 「A Guide for the Study of Animals」
...
Present systems of classification include the subfamilies Passerinaeand Estrildinae in the Family Ploceidae...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Serological relationships among domestic fowl as shown by comparisons of protein preparations from corresponding organ systems...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Among cattle it isoccasionally observed under systems of bad hygiene, filthiness, lousiness,overcrowding, overfeeding, excessively damp or too warm stables...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Larvule: applied to early stages of Ephemerid larvaewhen they appear to have no developed respiratory, circulatory ornervous systems...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Singularlyenough, the nervous, vascular, and respiratory systems (tracheæ) arewanting, and the alimentary canal is a blind sac, remaining in anindifferent, or unorganized state...
Alpheus Spring Packard 「Our Common Insects」
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