REPRODUCTION, SEX, AND HEREDITY. Oen t Sub . 75 
b. Heredity . 
General discussion of ; Delage (145), Pfeffer (523), Romanes (58G): 
exposition; Haycraft (289). — Sketch of the various theories of 
heredity; Rohde (583). — Heredity once more; Weismann (738), 
Spencer (665). — Study of heredity ; Marti^re (431). — Independence 
of paternal and maternal elements in the early development of Cyclops ; 
Hacker (276). — Dynamical hypothesis of inheritance ; Ryder (602). — 
Dynamics of heredity ; Gasser (237). — Theories of heredity : criticisms 
and suggestions ; Haacke (272), Osborn (503). — The general theory of 
heredity ; Orchansky (500). — Energid theory and heredity ; Sachs 
(609). — Heredity, regression, &c., mathematically discussed ; Pearson 
(515). — Some aspects (medical and ethical) of heredity; Barbour (19). 
— Inheritance of disease ; Orchansky (500). — Transmissibility of nervous 
diseases : — There is no secure case of the transmission of a nervous 
disease which originated solely in an external influence on a normal 
individual. What is transmitted is a ** psychopathic predisposition,” 
“ a sensitive weakness,” “an easy exhaustibility,” in short, a constitutional 
peculiarity of germinal origin. While clinical experience does not 
furnish any absolute negation of the transmissibility of acquired 
pathological characters, it seems most likely that all transmissible diseases 
and malformations have a germinal origin ; Rohde (583). — Insanity in 
royal families ; Bodington (48). — Degenerative heredity ; Denison 
(147). — Tendency and predisposition : their ill-defined nature ; Bennett 
(35). — Heredity considered in connection with stock-breeding ; Keller 
(336). — Pangonesis : theory that di verso hereditary qualities have materi- 
ally different bearers, pangenes, idioblasts, or biophors, as the hypo- 
thetical particles are called ; de Vries (719). 
Teratogenic influence of alcohol, &c., on ova : compare facts of 
heredity as to alcoholism ; F^r^ (191). — Inherited effects of toxines ; 
Charrin (99). — The effect on offspring (rabbits) of inoculating the 
parents with toxines ; malformations, &c. ; Charrin & Gley (100, 
101, 102). 
Albinism, inheritance of ; Haacke (269). — Experiments on congenital 
deformities; Charrin & Gley (101). 
Inheritance of acquired characters : — General discussion of hereditary 
and acquired characters ^Romanes (586), Coutagne (120). —Inheritance 
of characters assumed to have been acquired during the lifetime of 
Lepidopterous larvae ; Packard (507). — Neuro-pathology furnishes no 
certain case of their transmissibility, but it is undeniable that they have a 
secondary influence on the variable germ plasm, disturbing it to varying 
degrees, from minimal effects to absolute inhibition ; Rohde (583). — Proof 
of the necessity for the inheritance of acquired characters. The necessity 
follows from a conception of the organism as an equilibrated system ; 
Haacke (273). — “Is there any real and essential difference between the 
transmission of functionally-acquired modifications to offspring, and their 
registration or persistence in the individual organism ; ” Grant Allen 
1895. [vol. xxxii.] b 9 
