1. Never be satisfied with one visit, but pay a second at a short interval, and unannounced. 2. Have the patient carefully watched in the interval of your visits. 3. Examine each organ of the body separately, carefully comparing the state of each with the symptoms described by the patient. 4. Note the discrepancies in the statements of the patient as to his symptoms and their known occurrence in real disease. 5. Sometimes ask questions the reverse of his statements, or take his statements for granted, when in all probability he will contradict himself. 6. Remove all bandages and other dressings. 7. The administration of sham physic, or the suggestion of some heroic mode of treatment; the application of the actual cautery may have a beneficial effect. 8. Pay little attention to the reports of bystanders, or of the culprit‘s fellow-prisoners. 9. Anæsthetics may be employed, if necessary, for the purpose of detection. 10. The motives of deception should be inquired into, and borne in mind, in the examination of all cases. EXEMPTION FROM PUBLIC DUTIES The existence of certain diseases may be claimed as a bar to active service, both in a civil and in a military capacity; and the opinion of a medical man may be required as to the fitness or unfitness of the individual for the service from which he claims exemption. In giving certificates of this nature, the medical practitioner cannot be too guarded in wording them; and each case must be treated on its merits, so that strict justice may be done. Among the diseases which may incapacitate a man for active employment may be mentioned--syphilis; hernia; phthisis; affections of the eyes, attended with dimness of vision, or colour blindness; varicose veins; and some other diseases. WILLS Although a medical man, as a rule, should refuse to draw up a will, still there are occasions when his doing so may save much litigation and expense. The following directions may therefore be of use: 1. Let the wishes of the testator be expressed in the plainest and simplest words, avoiding all expressions that seem to admit of another meaning than the one intended. 2. All alterations in the will should be initialled. 3. Do not scratch out a word with a knife, and no alteration must be made after the will is _executed_. 4. Two witnesses are necessary, who must both be present and sign the following attestation at the end of the will, or on each sheet if more than one sheet of paper be used: “Signed by the testator (or testatrix, as the case may be) in the joint presence of us, who thereupon signed our names in his (or her) and each other‘s presence.” 5. Add address of witnesses. 6. A clause appointing an executor should be inserted thus: “And I appoint J. B. executor of this my will.”