...enfeebles the organ concerned, and the modifications thus acquired are preserved " through heredity to the new individuals that are produced by them, provided the changes are common to the two sexes, or to those that have produced these new individuals." There are three...

...Variation of Animals and Plants under Domestication, vol. ii. p. 6. Edition, 1868. which descend from them, provided the changes acquired are common to the two sexes, or to those which have produced new individuals.' 1 Still, these two opposite opinions, both of which may be supported...

...organs, or through a failure to exercise certain parts, it preserves through heredity (g£n6ratiori) to the new individuals that are produced by them,...become permanent increases the capacity of such organ, develops it, and causes it to acquire dimensions and power of action which it does not possess in animals...

...preserved "through heredity to the new individuals that are produced by them, provided the changes are common to the two sexes, or to those that have produced these new individuals." There are three things to be considered in this hypothesis: l. Changes in environment or the conditions...

...organs, or through a failure to exercise certa1n parts, it preserves through heredity (gSntration) to the new individuals that are produced by them,...become permanent increases the capacity of such organ, develops it, and causes it to acquire dimensions and power of action which it does not possess in animals...

...exercise of certain organs, or through a failure to exercise certain parts, it preserves through heredity to the new individuals that are produced by them,...to those that have produced these new individuals." Lamarck. isms is his possession of faculties above the plane of physical stimulus and response.5 Man's...