244 



William Christopher Krauss 



Developmental, 

 r Active 



Physio- 

 logical. 



Passive. 



Functio- 

 I,esio. 



Patho- 

 logical. ' 



f Aplasia. 

 I Hypoplasia. 

 -1 Senile Wasting, 

 f Dimitiished Nutrition. 

 J Defective Assimilation. 

 1 Febrile Processes. 

 {^Direct Traumatism, etc. 

 ( Anchyloses. 

 -; Surgical Appliances. 

 (Hysterical Contractures, etc. 

 I Spontanic, Secondary, Traumatic, etc, 



Neuropathic, j ^°f^^^*j'i^^ Processes, 

 t Arthritic. 



fScapulo-Humeral. (Erh's Juvenile Form.) 

 J Facio-Scapulo-Humeral. (Landouzy- 



Dejerine. 

 Paralysis Pseudo-Hypertrophic. 



f Poliomyelitis acuta Infantilis. 

 Acute. I Poliomyelitis acuta Adultorum. 



' Hand Type. (Du- 



Myopathic. 



Myelopathic. 



Cerebropath- 



Protopathic. 



Deuteropa- 

 thic. 



chenne-Aran. 

 PeroEeal Type. 



(Charcot-Tooth.) 

 Amyotrophic Lateral 



Sclerosis. 



Syringomyelia. 



Gliomatous Growths. 



1 locomotor Ataxia. 



Multiple Sclerosis. 



Diffuse Myelitis. 



iMyelo-Myelitis, etc. 

 f Monoplegia. 

 Cerebral Palsies. < Hemiplegia. 

 (Diplegia. 



The different forms of developmental defects have been suf- 

 ficiently considered in another part of this paper. Under the 

 head of physiological atrophies are placed two forms, the 

 active and the passive. With the active atrophy is classed 

 senile wasting or the retrogression of old age. This form is 

 more or less general, affects all organs and tissues and has but 

 one termination, the result of all decay — death. 



Belonging to the passive atrophies, or those processes which 

 are the result of disorders of the constructive organs may be 

 mentioned the wasting of the tissues following diminished 

 nutrition, defective assimilation, febrile processes, constitu- 

 tional diseases, malignant growths, etc. The atrophy is gen- 

 eral, attacks no particular group of muscles, tissue waste is 

 greater than tissue rep'air, and the atrophy continues until a 

 reaction sets in when the primary affection either goes on to 

 recovery or to a fatal termination. The diagnosis of this 

 group is simply the diagnosis of the fundamental disease. No 



