316 THE HISTORY OF CREATION. 
CHAPTER XIII. 
THEORY OF THE DEVELOPMENT OF THE UNIVERSE 
AND OF THE EARTH. SPONTANEOUS GENERA- 
TION. THE CARBON THEORY. THE PLASTID 
THEORY. 
History of the Development of the Harth.—Kant’s Theory of the Develop. 
ment of the Universe, or the Cosmological Gas Theory.—Development 
of Suns, Planets, and Moons.—First Origin of Water—Comparison 
of Organisms and Anorgana.—Organic and Inorganic Substances.— 
Degrees of Density, or Conditions of AggregationAlbuminous 
Combinations of Carbon.—Organic and Inorganic Forms.—Crystals 
and Formless Organisms without Organs.—Stereometrical Fundamental 
Forms of Crystals and of Organisms.—Organic and Inorganic Forces. 
—Vital Force.—Growth and Adaptation in Crystals and in Organisms, 
—Formative Tendencies of Crystals——Unity of Organic and In- 
organic Nature——Spontaneous Generation, or Archigony.—Autogony 
and Plasmogony.—Origin of Monera by Spontaneous Generation.— 
Origin of Cells from Monera.—The Cell Theory.—The Plastid Theory. 
—Plastids, or Structural-Units.—Cytods and Cells.—Four Different 
Kinds of Plastids. 
In our considerations hitherto we have endeavoured to 
answer the question, “By what causes have new species of 
animals and plants arisen out of existing species?” We 
have answered this question according to Darwin’s theory, 
that natural selection in the struggle for existence—that is, — 
the interaction of the laws of Inheritance and Adaptation 
—is completely sufficient for producing mechanically the 
