58 NATURAL SCIENCE. Jan.. 



Diplanetism (apparently an erroneous form oi diplanesis, from 8i'?, 

 twice, and tt AoVr/o-t?, a dispersing), double swarming of zoospores 

 (Humphrey.) 



Distad, directed from the Centrum. (Schulze.) 



Distan, on the periphery of a Synstigma. (Schulze.) 



Dorsan, on the outer surface of the dorsum. (Schulze.) 



Ectergogenesis (eV-ro'^, without ; i'pyov, work; ye'veo-ts, birth), the 

 passive reactions of an organism to environment. (Hyatt.) 



Ectergogenic (erroneously for " ectergogenetic "), adjectival form 

 of the above. (Hyatt.) 



Entergogenesis (evT OS, within ; e'oyov, work; yeVe 0-19, birth), the 

 active reactions of an organism to environment. Equals " effort " of 

 the Neo-Lamarckians. (Hyatt.) 



Entergogenic (erroneously for "entergogenetic"), adjectival form of 

 the above. (Hyatt.) 



Entergogenism (an impossible word), the principle of the above. 

 (Hyatt.) 



Evgogeny (erroneously for " ergogenesis ") (e'pyov, work; ye'i'eo-i?, 

 origin), general term for all forms of energy producing modifications 

 of bone. (Ryder.) 



Evgogenetically adverbial form of the above. (Ryder). 



Genesiology (ye'^eo-i^, birth; Ao'yo^, science), the stud)' of the 

 phenomena of heredity. (Hyatt.) This term has already been used 

 in another sense, viz., "the science of generation," and should there- 

 fore be inadmissible. 



Genetic force, the active force of heredity. (Hyatt.) 



Genism (an impossible word), the principle of heredity. (Hyatt.) 



Heinera (?///, e'p a, day), a chronological subdivision of the geological 

 term "age," marking the acme of development of one or more 

 species. (Buckman.) 



Heteropol, see Bilateralien. 



Heterotrophic (eTepo'i, other ; -pocf^iKo'^, nourishing), existing with 

 aid of commensals ; applied to lichens. (Minks.) 



Isopol, see Bilateralien. 



Kavyokinetic [Ka'pvov, a kernel; klvijtlkos, setting in motion), 

 applied to phenomena of active stages of cell-nuclei, an old term 

 restricted. (Ryder.) 



Karyostatic (Ka'pvov, a kernel; crra-tKo'?, causing to stand still), 

 applied to phenomena of resting stages of cell-nuclei. (Ryder.) 



i^wz^^og^ny (erroneously for "kinematogenesis," or "kinesigenesis," 

 Ktveti', to move; yeVecrts, origin), energy of motion, the agency pro- 

 ducing modifications in the form and proportions of bones. (Ryder.) 



Meta-type {/leTa, after; tvttos, type), applied in zoology to a 

 specimen collected at the exact locality whence was obtained the type 

 of the species to which it belongs, and named by the author of that 

 species. (Thomas.) 



