Few fields, the authors say, have as frequent and daily contact with rules and regulations as the profession of pharmacy; and he certainly proves his case, as may be seen from the chapter headings, which cover government and the regulation of pharmacy, state regulation, federal regulation, the pharmacist's liability for negligent acts, the pharmacist's liability for negligence of the employee, other rights and liabilities, contracts relating to the sale of drugs, bankruptcy, insurance and trade restraints. There is an appendix dealing with the Harrison Narcotic Law, the federal Food and Drugs Act, the federal criminal law relating to nonmailable matter, and other important laws. In chapter I the author explains that the federal government, in respect to delegated powers, is supreme but that it is restricted to a far greater extent than the state governments, which in the exercise of their "police power" may variously regulate the practice of pharmacy