These two people, nurse and agent, are both specialists in their own lines, and they are equally needed. They have had a different training and are equally valuable in the field of social service. Even if it were possible, we should not like to see these two offices combined in one person—somewhere there would be a loss. It is difficult enough to get a first-class tuberculosis nurse, and it is equally difficult to find a first-class charity organization agent. How much more difficult to find these combined in one person. There is full warrant for saying that under no circumstances whatever should the nurse become a relief-giver, or even remotely identified as such. In the foregoing pages we have learned something of the extent and responsibility of her work, and if she concentrates her attention upon bringing it to the highest degree of efficiency, she will find time for nothing else. Moreover, if she becomes known as one able to give material assistance, her value as a public health nurse will decline. That she can give or withhold relief will become known to her patients, who will follow or reject advice according to what they receive from her. Her prestige as impartial, disinterested adviser will at once diminish, and the force and authority of her opinion be lost. Never, even by the gift of a five-cent piece, should she jeopardize her unique position. The well-to-do patients will scorn her services, and resent the implication of her visits, while the others will follow advice when they are bribed, so to speak, and do as they like when for any reason this bribe is withdrawn. And other patients will be disobedient or resentful if they cannot obtain what their neighbours have, or what they believe themselves entitled to. =Co-operation not Interference.= To concentrate on one’s specialty is all we should ask of anyone. Any social agency which scatters instead of concentrates, produces superficial work, which is open to well-deserved criticism. As well expect a nurse to become a kindergarten teacher, because she sees the need for kindergartens, or to become a playground teacher or settlement worker, as to take upon herself the rôle of charity-organization agent. _And the reverse of this is true._ We should not expect a relief-giver to undertake a nurse’s duties. It is not the combination of various effective qualities in one person, but the co-operation of various effective persons or specialists, which counts in social service. Furthermore, each set of workers should recognize its own limitations. The line of demarcation should be sharply drawn between the work of one agency and that of another.