Microscopical morphology of the animal body in health and disease / by C. Heitzmann. With 380 original engravings.
- Carl Heitzmann
- Date:
- 1883
Licence: Public Domain Mark
Credit: Microscopical morphology of the animal body in health and disease / by C. Heitzmann. With 380 original engravings. Source: Wellcome Collection.
Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.
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![amoeta. I have named this biological doctrine, which is based on Heitzmann's discoveries, the bioplasson doctrine, nsing the word bioplasson only as a technical synonym for the two words living matter; and I use the term plastid, proposed by Haeckel, or that of bioplast, proposed by Beale, to denote a so-called in'otoi)lasmic body, or a form-element, a formerly so-called cell. Perhaps it would ])e the best to restrict the word bioplast to a small mass of living matter exliibitiug no differentiation, and to distinguish from it as plastid the larger mass showing an interior structure more or less like the fully developed corpuscles. Thiis, I would always use the terra '' plastid in the place of cell. The word protoplasma is etymologically incorrect for designating living and formative matter, as it has already been used by some authors with a meaning other than the simple one here intended ; and as it has not yet be- come so common that its retention or rejection is a matter of much conse- quence, I propose the designation bioplasson doctrine. The word plasma (xi TtXaajJia) really means the formed, that which is formed, and plasson (to rCka—oy) the fornihif/, that which forms or does the forming. The distinction is the one so justly insisted upon by Beale in his discrimination between f/erminal or liri)i{j matter and formed material. The term plasm may, perhaps, be appropriately applied to the material formed from the fluid of living matter, the intermediate or intercellular substance of authors; but the term plasson only can be applied to active, living, forming matter. Proto (TCpwxo-) is a prefix signifying first, primary, primordial; and protoplasma has been used by some to denote the original or first-formed organic matter. But the term we are in need of for our biological doctrine is one that shall be an expression for living formative matter in its simple elementary form ; and for this purpose, it seems to me, bioplasson may appro- priately be chosen. The General Constitution of the Body, as Recognized by Single Plastids. In 1879* I published facts which, perhaps, are of some vahie to practical medicine, and certainly elucidate the prac- tical value of the new discoveries. I reprint my assertions with the only alteration that, in accordance with the new terminology, as suggested in the foregoing article, instead of''protoplasm'' and protoplasmic body,'' I use the terms bioplasson and plastid. The amount of living matter within a limited bulk of a plastid varies greatly in diif erent individuals. It is obvious that what is called a healthy or vigorous constitution is based upon a large amount of living matter in the l>ody, the new growth of which in morbid processes is very lively; while a strumous or scrofu- lous or phthisical constitution nnist be caused by a relatively smaU amount of living matter, the new growth of which is * The Aid which Medical Diagnosis Receives from Recent Discoveries in Microscopy. Ai'chives of Medicine, February, IS79.](https://iiif.wellcomecollection.org/image/b21219163_0084.jp2/full/800%2C/0/default.jpg)
