little sodium or potassium carbonate to a concentrated solution of calcium chloride in albumin, he got at first a gelatinous mass, or ãcolloid precipitateã: which slowly transformed by the
Fig. 195. Calcospherites, or concretions of calcium carbonate, deposited in white of egg. (After Harting.) Fig. 196. A single calcospherite, with central ãnucleus,ã and striated, iridescent border. (After Harting.)
appearance of tiny microscopic particles, at first motionless, but afterwards as they grew larger shewing the typical Brownian movement. So far, very much the same phenomena were witnessed whether the solution were albuminous or not, and similar appearances indeed had been witnessed and recorded by Gustav