Letters to the Editor Emulsion Terminology Sir: In a review article on terminology (1) which commented on one aspect of our work, Mittal made the alleged quote that "Flocculated e•nulsions are not recognized." The actual statement by Ecanow and co-workers was "Flocculated emulsions are not readily recognized" (2). Based on his misreading of the article, Mittal reinforced his discussion by using the approach that it was not believed that fiocculated emulsions do exist (1). This in the face of the facts that in the next sentence of our article (2) we describe the networks of a fiocculated emulsion reported in the literature and after which we go on to discuss the preparation of a fiocculated emulsion. Of greater importance in emphasizing the uni- versal nature of the flocculated state is the final paragraph in which Ecanow et al. (2) comment that the definitions of the coagulated, fioccu- lated, and dispersed states apply to suspension, emulsion, and foam sys- tems. We have extended these concepts to the conclusion that any herer- ogenous system of any combination of solid, liquid, or gas particles can exist in the physical states of (I) dispersion, or (II) coagulation, or (III) fiocculation. Red blood cells can be regarded as emulsions of biological origin and can exist in all three states, i.e., fiocculation, coagulation and dispersion (3). We have used the terminology fiocculated red cells to explain blood system phenomena just as we have used the terminology fiocculated emul- sion to explain the phenomena of any emulsion system. In answer to the conclusions listed by Mittal (1) in the article com- menting on our conceptual clarifications: we believe all terms should be used judiciously and the use of unwarranted terminology is unwar- ranted. It should be the job of the scientific community to decide what constitutes unwarranted terminology. B. ECANOW, R. ]•ALAGOT, B. GOLD, C. ECANOW University of Illinois, 833 S. Wood St., Chicago, Ill. Hines V. A. Hos- pital, Hines, Ill. Ecanow Assoc. Consultants, Chicago, Ill. REFERENCES (1) Mittal, K., Conceptual clarification of the terms used to describe emulsion behavior. J. Soc. Cosmet. Chem., 22, 815-24 (1971). (2) Ecanow, B., Gold B., Ecanow, C., Newer aspects of suspension theory, Amer. Perfurn. Cosmet., 84, 27-30 (1969). (3) Ecanow, B., Gold, B., Balagot, R., Observations on the relationships between one-hour and twenty-four erythrocyte sedimentation rates, Lab. Pract., 19, 706-8 (1970). 681