...philosophical discussion of the significance of the observations. He comes to the conclusion that: "The elementary parts of all tissues are formed of...that there is one universal principle of development of the elementary parts of organisms, however different, and that this principle is the formation of...

...Untersuchungen iiber die Uebereinstimmung in der Struktur und dem Wachslhum der Thiere und Pflanzen." He says: "The elementary parts of all tissues are formed of...however different, and that this principle is the formation of cells." And further: "The development of the proposition that there exists one general...

...Untersuchungen iiber die Uebereinstimmung in der Struktur und dem Wachsthum der Thiere und Pflanzen." He says: "The elementary parts of all tissues are formed of...very diversified manner, so that it may be asserted thai (here is one universal principle of development for the elementary parts of organisms, however...

...identical in their ultimate structural composition, and they concluded, in the words of Schwann, "that the elementary parts of all tissues are formed of...however different, and that this principle is the function of cells." "The development of the proposition that, there exists one general principle for...

...investigation the cellular origin and development of various tissues, and arrived at the generalization that "There is one universal principle of development...elementary parts of organisms, however different, and that principle is the formation of cells." In 1839 appeared his "Microscopical Researches concerning the...

...multiplication of this initial cell into the multitude of different kinds which constitute the adult. "The elementary parts of all tissues are formed of...in an analogous, though very diversified manner, so it may be asserted that there is one universal principle of development for the elementary parts of...

...animals. In the words of Schwann, this theory set forth that " the elementary parts of all tissues arc formed of cells in an analogous, though very diversified...asserted that there is one universal principle of fipvplr'p"""Tit far the elementarv parts of organisms, however different, and that this principle is...

...that pointed toward a common plan of structure for both plants and animals. In 1839 Schwann wrote " ' The elementary parts of all tissues are formed of...however different, and that this principle is the formation of cells.' And further: 'The development of the proposition that there exists one general...

...Similarity of Structure and Growth of Plants and Animals." One of his statements is interesting. " The elementary parts of all tissues are formed of...however different, and that this principle is the formation of cells." It should be said here that although Schwann was led to his conclusions regarding...

...unapproached in any earlier treatise. With regard to the general significance of cells Schwann says: "The elementary parts of all tissues are formed of...elementary parts of organisms, however different, and thai this principle is the formation of cells ... All organized bodies are composed of essentially...