DESIDERATA 147 chemists and their superiors with whom I have been associated during my years of consulting. In truth, it is their combined endowments which are reflected by this award. My address tonight is not a re- port of the solution of some great problem, but a restatement of some issues or needs still with us, though not always recognized or noticed. These I summarize loosely under one title, "Desiderata," a masthead identified with my name for over 15 years. Many have wondered just what the word means. It is the Latin for the plural of desideratum. One dictionary says that a desideratum is "something not possessed, but needed or regarded as desirable," while another defines it as "anything desired or needed." A liberal trans- lation might be "thoughts on wants or Desiderata is a reconnaissance not an encyclopedic review. Its avowed purposes are vigilance, inquiry, discussion, suggestion, an- swer and review, all of which will be recognized as my address progresses. DESIDERATA BY M^soN G. DEN^v^RRE, B.S. Fice-President, in charge of Manufacturing & Research, Cosmetic Laboratories, Inc. (Div. Beauty Counselors, Inc.), Detroit 2, Mich. In leading off this special edition of "Desiderata," let me first pass the plaudits to the hair waving part of our industry for its dramatic accomplishments during the past dozen years. There is no division of our business that has spent as much real scientific effort in so short a time and in turn reaping so rich a harvest. It is an inspiring example to all. RADIOACTIVE TRACERS It may seem far fetched that by- products of work on atomic fission find employment in cosmetic prac- tice, but it is not. Radioisotopes are expensive. The work is delicate. Interpretation of results is difficult, and requires a lot of experience in understanding them. In 1949, Barall and Pescotore reported before this SOCIETY, their findings on the use of cold cream made with synthetic cetyl palmirate containing radioactive Carhonda in the molecule. Briefly, delicate Geiger counters were developed to detect penetration or absorption. Cetyl palmirate was found not to be absorbed. Along another line, Lux and Christian learned that permeability of frog skin could be more accurately determined by using a radioactive tracer. They adapted the technique

DESIDERATA 147 chemists and their superiors with whom I have been associated during my years of consulting. In truth, it is their combined endowments which are reflected by this award. My address tonight is not a re- port of the solution of some great problem, but a restatement of some issues or needs still with us, though not always recognized or noticed. These I summarize loosely under one title, "Desiderata," a masthead identified with my name for over 15 years. Many have wondered just what the word means. It is the Latin for the plural of desideratum. One dictionary says that a desideratum is "something not possessed, but needed or regarded as desirable," while another defines it as "anything desired or needed." A liberal trans- lation might be "thoughts on wants or Desiderata is a reconnaissance not an encyclopedic review. Its avowed purposes are vigilance, inquiry, discussion, suggestion, an- swer and review, all of which will be recognized as my address progresses. DESIDERATA BY M^soN G. DEN^v^RRE, B.S. Fice-President, in charge of Manufacturing & Research, Cosmetic Laboratories, Inc. (Div. Beauty Counselors, Inc.), Detroit 2, Mich. In leading off this special edition of "Desiderata," let me first pass the plaudits to the hair waving part of our industry for its dramatic accomplishments during the past dozen years. There is no division of our business that has spent as much real scientific effort in so short a time and in turn reaping so rich a harvest. It is an inspiring example to all. RADIOACTIVE TRACERS It may seem far fetched that by- products of work on atomic fission find employment in cosmetic prac- tice, but it is not. Radioisotopes are expensive. The work is delicate. Interpretation of results is difficult, and requires a lot of experience in understanding them. In 1949, Barall and Pescotore reported before this SOCIETY, their findings on the use of cold cream made with synthetic cetyl palmirate containing radioactive Carhonda in the molecule. Briefly, delicate Geiger counters were developed to detect penetration or absorption. Cetyl palmirate was found not to be absorbed. Along another line, Lux and Christian learned that permeability of frog skin could be more accurately determined by using a radioactive tracer. They adapted the technique