pH AND BUFFERS IN RELATION TO OPHTHALMOLOGY

The determination ofph1has proved of great value in the perfection of many processes in various important industries. The usefulness of this test in the canning of fruits and vegetables has paralleled its application in the baking, tanning and sugar industries. Manufacturers of pharmaceutic products, those engaged in the dairy industry and many others employphfor one purpose or another in the betterment of their products. In the basic sciences, such as bacteriology, biology and pathology, as well as in dentistry the use ofphis well established. Thus it has been noted that there is a definite relationship in cow's milk between thephand the content per cubic centimeter of leukocytes and streptococci.2The importance of knowing thephof culture mediums and the rôle ofphin bacterial growth is well known. Studies on thep