This is an action of tort in which the plaintiff seeks to recover damages for injuries received by him while a passenger of the defendant. The question of liability hinges upon the point whether the plaintiff, having given the conductor the proper signal, attempted to alight from the car before it came to a stop, or whether, after the car had stopped in response to his signal, it started again before he had a chance to reach a place of safety on the ground.
1. The plaintiff was rightly permitted to show the extent of his studies and his special equipment in the department of learning in which he specialized. His skill and experience had some bearing upon the value of his time.
*1462. There was evidence tending to show that the plaintiff was a professor of economics in the University of Minnesota, that he had made a special study of public service corporations and had acquired a considerable reputation in that branch of political science. Against the exception of the defendant, he was allowed to show that in January before his injury, which occurred in June, he entered into a profitable contract for the preparation of a series of articles on “Economics of Advertising, ” and that he was prevented from executing this contract during the summer vacation as he had planned, because of the injury. The con-' tract and the evidence respecting it were competent. The plaintiff was entitled to recover as damages compensation not only for the pain and suffering endured, but also for the loss of time of the valuable use of which he was deprived. The contract price for writing the articles was not recoverable specifically. It was admissible as bearing upon the general damages sustained by him. Sibley v. Nason, 196 Mass. 125, 131. Failure to write the articles was not too remote. It might have been found as to the plaintiff to have been a direct and immediate result of the injury. Ballou v. Farnum, 11 Allen, 73. Halloran v. New York, New Haven, & Hartford Railroad, 211 Mass. 132. Randall v. Peerless Motor Car Co. 212 Mass. 352, and cases cited at 381.
3. Evidence to show that the plaintiff received money under a policy of accident insurance properly was excluded. The relations between an insurance company and the plaintiff as its insured had no bearing upon the extent of his injuries, nor upon the defendant’s liability. Clark v. Wilson, 103 Mass. 219. International Trust Co. v. Boardman, 149 Mass. 158.
4. There was evidence that the plaintiff was thrown or fell from the car to the street. The defendant offered to show that, while the plaintiff was being picked up, some one who was not a witness to the accident would testify that she heard some noise and somebody said, “It was his own fault.” This evidence was excluded rightly. It was the expression of a conclusion or of an opinion, and not the exclamation of an observation. It was not a statement accompanying an act, nor was it a part of the controversy which was under investigation. The case is plainly distinguishable from Hartnett v. McMahan, 168 Mass. 3, on which the defendant relies.
*1475. As tending to prove that the street was slippery, the defendant called a foreman of the street department to show that the street where the accident occurred recently had been oiled. The witness testified to the fact and date of oiling after-refreshing his recollection from a record which was filed every morning after the oiling. This record was then offered in evidence and was excluded. In this there was no error. It does not appear that the writing had any force beyond that of a memorandum made by the witness himself for the information of his superiors. The witness was allowed to make the fullest use of it for the purpose of aiding him in giving his testimony, and it does not appear that the paper was competent for any purpose. Gurley v. Springfield Street Railway, 206 Mass. 534.
6. The instruction to the jury to the effect that if “the plaintiff in an honest effort to lessen the injurious effects of the accident used due care in applying for treatment of the wound on his knee to a reputable physician, the defendant is responsible in damages for the injuries that resulted to the plaintiff from the defendant’s negligence, even though such injuries were aggravated by an accidental or mistaken, but honest, treatment on the part of said physician,” was not error. This is in substance the rule which has been laid down in our own cases. Eastman v. Sanborn, 3 Allen, 594. McGarrahan v. New York, New Haven, & Hartford Railroad, 171 Mass.211. Hunt v.Boston Terminal Co.212 Mass.99. It prevails generally.* The ground for the rule is that the plaintiff is bound to exercise reasonable care for his own safety after the injury. If the injury is serious enough to require the attendance of a physician, he is bound to use the caution of the ordinarily prudent person in choosing the physician and in following his instructions. If an honest mistake is made by a doctor wisely selected, that is regarded as one of the incidents of the tortious act of the defendant. The injured person cannot with justice be required to insure for himself the most skilful medical attendance. Lack of skill on the part of a physician so chosen is not *148an independent and disconnected act, but is one which rationally may be attributed to the original tort of the defendant. The case at bar is distinguishable from Snow v. New York, New Haven, & Hartford Railroad, 185 Mass. 321, and cases of like nature.
7. The instruction to the effect that in determining the amount of damages the jury might consider the amount of the plaintiff’s “average earnings, his professional reputation and his special attainments in his profession” was not open to criticism. It was competent as bearing upon earning capacity to consider what his professional attainments and reputation were. They were not independent elements for the assessment of damage, and the portion of the charge excepted to did not treat them as such. Stynes v. Boston Elevated Railway, 206 Mass. 75.
8. The defendant’s tenth request, to the effect that there could be no recovery if the plaintiff’s injury “was the result of an accident which occurred without the negligence of the defendant,” was given in substance.
9. The request for a ruling to the effect that where “witnesses of equal candor, fairness and intelligence testify with equal opportunity of knowledge and memory, and their testimony is in all respects of equal weight and credibility and there is a conflict as to facts which cannot be reconciled, the number of witnesses then constitutes a preponderance and the verdict should be in harmony with the greater number of witnesses, ” although taken in substance from the opinion in Madden v. Saylor Coal Co. 133 Iowa, 699, was refused properly under the circumstances of this case. It was not applicable to the facts for the reason that the witnesses did not have equal opportunity for observation. The number of witnesses testifying in general to the same effect is an important factor to be taken into account by the jury, but other circumstances affecting the weight to be given to testimony are to be considered also. See Beckles v. Boston Elevated Railway, 214 Mass 311.
10. The defendant’s fourteenth request was incorrect in its original statement, but, as modified by the trial judge, stated the law rightly as adapted to the evidence. McDermott v. Boston Elevated Railway, 208 Mass. 104.
11. The general request to the effect that the plaintiff was not *149entitled to recover was denied rightly. Killam v. Wellesley & Boston Street Railway, 214 Mass. 283.
12. The refusal of the judge to instruct the jury to disregard in considering damages the fact that the plaintiff was unable to keep his contract to write the magazine articles, was correct. As we have pointed out, this may have been regarded as a direct consequence of the injury. The physicial injury and its resulting pain may have been found sufficient to prevent the intellectual effort required to write the articles. As was said by Mr. Justice Holmes in Braithwaite v. Hall, 168 Mass. 38, 40, “To this extent a tortfeasor takes the risk of the value of what he destroys. ”
13. After the verdict a motion for a new trial was filed, one ground of which was the disqualification of a juror named Pfaff. Affidavits were filed and a hearing had, upon which the trial judge found as facts that Pfaff, in October, 1906,* suffered injury in his property through a collision between a wagon belonging to him and a car of the defendant, for which he presented a claim to the defendant; that no settlement was made and no action brought; that before the trial of the case at bar, but after the panel appeared to be complete, the clerk inquired among other things whether any of the jurors had a claim against the defendant, and that no one responded; that at no time was any motion made under R. L. c. 176, § 28, or otherwise, for the examination under oath of any juror; that all the facts respecting the juror’s claim against the defendant were known to the defendant through its accident records although not to its attorney who tried the case, and that “neither by reason of the said accident and claim or otherwise was the said Pfaff in any way related to either party in said cause, nor did the said Pfaff have any interest therein, nor has he expressed or formed any opinion or been sensible of any bias or prejudice therein ; that there was no reason or objection to his serving as said juror in said case.” After making these findings the judge overruled the motion for a new trial. These findings of fact must be taken as true. It cannot be said as matter of law that one who has against a party to an action a stale claim barred by the statute of limitations, the existence of which was within the knowledge of the objecting party, constitutes such a *150disqualification of a juror as requires a new trial. The motion for a new trial in the absence of evidence constituting bias or prejudice as matter of law is ordinarily within the discretion of the trial judge. Woodward v. Dean, 113 Mass. 297. Commonwealth v. Wong Chung, 186 Mass. 231. That the circumstances relied upon as creating a bias were within the knowledge of the defendant before the trial has been said to be decisive against granting a new trial. Wassum v. Feeney, 121 Mass. 93. Failure to exercise the right to have the jurors examined before trial under the statute has been held to deprive a party of exception to a refusal to set aside the verdict for a cause which would have been revealed by such examination. Smith v. Earle, 118 Mass. 531.
14. No error is disclosed in. the refusal to grant the requests for instructions presented by the defendant on its motion for a new trial. The juror was not so incapacitated as a matter of law as to render the verdict a nullity. His own testimony as to his own impartiality was a circumstance to be considered by the trial judge, with all the other evidence, in determining the fact.
Exceptions overruled,.
Reed v. Detroit, 108 Mich. 224. Lyons v. Erie Railway, 57 N. Y. 489. Loeser v. Humphrey, 41 Ohio St. 378. Selleck v. Janesville, 100 Wis. 157. Chicago City Railway v. Saxby, 213 Ill. 274. Seeton v. Dunbarton, 73 N. H. 134. O’Donnell v. Rhode Island Co. 28 R. I. 245. Hooper v. Bacon, 101 Maine, 533. Fields v. Mankato Electric Traction Co. 116 Minn. 218.
The trial of the present case was in January, 1913.