Pseudo-Organic Structures of Colloidal Silicates. 21 
reagents : Chloride of lime, chloride of alumina, alcohol of 0.850, com- 
mon ether, chloride of ammonium, sulphate or nitrate of alumina, salt. 
According to the proportions and the way of forming the silicates, 
the following structures were obtained: Vesicles, tubes, filaments, gran- 
ules; an imitation of the amoeba coli , amoeba proteus , streptococcus , my- 
celiums of fungus, vacuoles, nucleus, radiolaria with very fine pseudo- 
podia, concentric layers, amoeboid motions, direct division . through 
strangling, radiations as of attractive spheres, large refractive nucleus, 
plasmodiums, protoplasmatic and granulated strings. 
The most interesting structures are those formed by alcohol and ether, 
as they present transparent amoebae with vacuoles, exactly like the amoeba 
coli , but dissolvable in water, or colonies of microbes, also dissolvable. 
It seems that the difference in the action of the reagents is due to the 
rapidity of their diffusion in the alkaline-sirupy silicate. The ether is, 
in fact, very quickly diffused and produces very fine and pretty struc- 
tures; salts, on the contrary, produce coarser structures which grow hard 
and are not dissolvable in water. 
As silicates exist in the whole of nature (egg, utero gravido, pancreas, 
seeds, etc.), and as the colloidal silica and the clay have very curious 
absorbent properties, and combine with innumerable bodies, 2 I have 
asked myself whether they might not be the cement of the protoplasma 
as well as of the majority of the minerals. But this subject is not as 
jet well known, and therefore I intend to pursue its study. 
8 Joly and Curie— Encyclopedic chimique de Fremie, t-II., p. 113. J. Thoulet 
— Les depots sous-marins. Revue scientiflque (3 juillet, 1892). Dana — A System 
of Mineralogy, p. 188. 
Hugo Schulz, Ueber den Kieselsaeuregehalt menschlicher und tieriseher Gewebe . 
Die Kieselsaurebestimmungen lieferten folgende Resultate: 
