PLx\NT CELLS AND LIVING MATTER. 



89 



name chlorophyll is given. Living matter has been called by 

 Hugo von Mohl " protoplasm/' by Lionel Beale " bioplasm/' 



F.>. t 



Fig. 1. — Cells from blade of grass, showing — CH. Chlorophyll granules. 

 R. Reticulum of protoplasm, and C. Cell-wall, 



and by me, because etymologically more correct, "bioplasson." 

 I am no stickler for new names, but in scientific discussions 

 we should use, if possible, correct names ; and of the four 

 synonymous designations, viz. living matter, protoplasm, bio- 

 plasm, and bioplasson, I therefore confine myself generally to 

 the first and last, although the term protoplasm is best known 

 and by others most used. 



In the year 1873, in a communication to the Vienna 

 Academy of Sciences, entitled " Phases of Living Matter," 

 Carl Heitzmann first described, in Amoeba, the youthful con- 

 dition of masses of living matter as being constituted by homo- 

 geneous granules, and advanced stages as being characterised 

 by vacuolation followed by reticulation. These statements 

 were confirmed as regards vegetable organisms in a paper on 

 " The Structure and Growth of some Forms of Mildew," in the 

 * New York Medical Journal/ November, 1878, by William 

 Hassloch, who says ihat the first visible form elements of the 

 plant are homogeneous granules, and the first appearing buds 



