[Enclosure]

Sinopsis of Paper On Diversity of Evolution under one set of External Conditions By Rev. J. T. Gulick

Relations of the Subjects

“The term Nat. Selection expresses a law which can act only where there is variation. What then is the effect of these variations where the external conditions remain the same? If the initiation of change in the organism is through change in the “Environment” by what law is the cessation of change determined? If change continues in the Organism long after the essential conditions of the “Environment” have become stationary, how do we know that it is not perpetual?

Does the change whether transitory or continuous expend itself in producing from each species placed in the new “Environment just one new species completely fitted to the conditions, or may it produce from one stock many that are equally fitted? If the latter what is the law or condition that determines their number, their affinities, and the size & position of their respective areas as related to each other & to the whole available area?

Separation & Variation correlative factors in the Evolution of Species

Migration & Variation opposing factors in the Limitation of Areas.

The Nat. Selection that prevents Variation.

Stability of type in Island fauna impaired

1^st. By freedom from the kind of Competition that limits Variation

2^nd By Competition accelerating Variation

3^rd By continual change in the character of the Nat. Selection

Imaginary Cases illustrating Evolution

Changes that would follow the introduction of hostile animals