Last night I went to a dinner party at eight. I ate and ate a great variety of palatable foods that Nature Back never knew. After two hours of eating I imbibed for two hours the tobacco smoke of the gentlemen who made up the party. I knew that eight o'clock was too late for me to begin eating, that two hours was too long to eat, that the tobacco of others was bad for my health and for to-day's efficiency. All this I knew when I accepted the invitation to dinner. I went with no intention of preventing others from smoking or of lecturing my host or his chef or his guests for the unhygienic practices of our day. Yet the physical ills were more than offset by certain definite gains to the school children of New York that will result from last night's meeting. Natural law was abated in part. But I declined certain dishes that would not agree with me, helped myself sparingly of many dishes, avoided tobacco and wines, and by a three-mile walk in the open air, a bath, and a good long night's sleep have almost recovered my right to talk of the sacredness of natural law. Nature Back says I should not have gone to this dinner. But I was compelled to go. I know I am going to others. I cannot do my work unless I overdraw my current health account. Nature Fore tells me that effective cooeperation with others will frequently require me to eat at the dinner hour of others, to retire at others' sleeping time, to wear what others will approve, to violate natural law. But Nature Fore also tells me how to build up a health reserve so that I can meet these emergencies without endangering my health credit. Nature Back demands "dress reform." Nature Fore tells me that I can march in step with my contemporaries without either attracting attention or discrediting and affronting natural law. Passion for the natural has effected numerous reforms in dress, diet, and social habits, until commerce provides a natural adaptation of practically every fashion. With regard to few things is it necessary to-day for any one who reads magazines to do violence to bodily health for fashion's sake. We may wear what we will, eat what we prefer, decline what is unnatural for us, without inviting censure. The debauches of those unfortunate people who live an unnatural, purposeless existence, affect such a small number that their laws need not be considered here. Natural law makes obedience to itself attractive; hence commerce is rapidly learning to cater to distaste for the unnatural. With few exceptions, only temporary concessions to unnatural living are required in order to dress and act conventionally.