EXPERIMENTS— Liability on making, 71, 72, 168. EVIDENCE—_See_ EXPERTS AND EXPERT EVIDENCE, SCIENTIFIC BOOKS. EXPERTS AND EXPERT EVIDENCE— Fees to medical witnesses, 27, _et seq._ Excluding at trial, 106, 120. Limiting number at trial, 106. Rules for guidance, 106, 107. When evidence of, admitted, 108, 117–120, 127. Who may be experts, 109–114, 128. The Court decides who may be, 113, 114. Experts among the Romans, 109. Opinions concerning, 110, 121–124. Need not have made a special study, 112. Better if they have, 112, 127. Jury to decide weight to be given to, 114. Opinions on morals, 115. Do not speak as to merits, 115, 118, 125, 127. Advisers of the Court, 115, 116. Should state grounds of opinion, 116. Admissible only as to matters of skill, 119. Are not jurors, 119, 125. Opinions on opinion, 119. In insanity cases, 121–128. What they may be asked, 124, 125. Must hear all the evidence, 126. Hypothetical cases, how put, 126, 127. F. FAMILY PHYSICIAN— Recommending another, 148. FEES—_See_ PAYMENT OF MEDICAL MEN. Under Roman Law, 15. Of physicians, not recoverable at Common Law, 15, 16. Recoverable under Medical Act, 15, 17. Of surgeons and apothecaries, 15, 16. Of physician and surgeon, 16. In Scotland and the Colonies, 17. In America, 17. No express promise to pay necessary, 18. How fixed, 18, 19. Must be reasonable, 19. In some countries fixed by law, 19. Services of assistants, 20. Not dependant upon cure, 20, 21. But services must be of benefit, 20–24, 167. Account should be in detail, 23. For friendly visits, 24. For drugs, 24. Where no cure, no pay, 25. To medical witnesses, 26, 27. To medical experts, 27–31. Exorbitant charges, 140. Who must pay, 32. FRANCE— Who may practise in, 44. FRIEND— Prescribing as, fees, 24. Not medical attendant, 24. G. GERMANY— Who may practise in, 44. GIFTS TO MEDICAL MEN— Are closely watched, 139. When set aside, 139, 140. When sustained, 140, 141. GOODWILL— In professional partnerships, 191. Sale of, 191. GRATUITOUS SERVICES— Liability of physicians for, 61, 65, 66.   —  — unprofessional men, 66, 67.   —  — dentists, 166. GROSS NEGLIGENCE— What is, 87, 88. Liability for, 55. H. HAIR-DYE— Noxious, damages for, 182. HOMŒOPATHISTS— Regulations as to, in Ontario, 66. Are Physicians in New York, 50, 54. Are not Quacks, 132. Consulting with, 134. HUSBAND— When liable for attendance on wife, 35, 39. When liable for artificial teeth for wife, 171. Suing druggist for damages to wife’s health, 186. HYPOTHETICAL CASE— How put, 126, 127. I. IGNORANCE— Liability for gross ignorance, 55–61. Criminal liability for gross, 55–88, 91, 92. Imputing, when actionable, 130. IMMORALITY— When actionable to impute, 134.