from the GNU version of the Collaborative International Dictionary of English
- n. Lamarckism.
from The Century Dictionary and Cyclopedia
- n. Same as Lamarckism.
Sorry, no etymologies found.
It seems to be that the various social/political movements of that era relied more on “mendelism” or even “lamarckianism” or just simply the kind of folkloric beliefs about “blood lines”.
 This is taken from my article, "Lamarck and Neo-lamarckianism," in the _Open Court_, Chicago, February, 1897.