abled by the injury. ’ (Storrs v. Los Angeles Traction Go., 134 Cal. 91, 92 [66 Pac. 72]; Melone v. Sierra Ry. Co., 151 Cal. 113, 115 [91 Pac. 522].) The difference between the two instructions is rather shadowy, but the one here complained of seems more favorable to the defendant than the other. However, it is good practice to adhere to approved instructions.
[7] “ The court sustained objections to questions asked by defendant for the purpose of proving that the plaintiff was married and for that reason could not maintain the action as to certain elements of damage claimed. It is sufficient to say that the answer raised no issue to which such evidence was pertinent.
[8] “Objection was improperly sustained to a question asked an expert witness as to the distance within which a Dodge car going twenty miles an hour can be stopped. The fact sought to be shown is not a matter of such common knowledge as to preclude the admission of expert testimony. The objection sustained was as follows: ‘Objected to as not a subject of expert testimony. Irrelevant, immaterial and incompetent. For the jury. ’ The question was not objectionable on the grounds stated. (Howland v. Oakland C. Ry. Co., 110 Cal. 513, 521 [42 Pac. 983]; Withey v. Fowler Co., 164 Iowa, 377 [145 N. W. 923] ; Johnson v. Quinn, 130 Minn. 134 [153 N. W. 267]; Blado v. Draper, 89 Neb. 787 [132 N. W. 410] ; Reaves v. Maybank, 193 Ala. 614 [69 South. 137]; Bishop v. Wight, 221 Fed. 392 [137 C. C. A. 200].)
[9] “ The court erroneously sustained a similar objection to expert testimony as to whether the damage to the truck as shown by the evidence could have been caused by the Dodge ear traveling at a speed of twenty miles an hour. (Perkins v. Sunset Tel. & Tel. Co., 155 Cal. 712, 715 [103 Pac. 190] ; Yaeger v. Southern California Ry. Co., 5 Cal. Unrep. 870 [51 Pac. 190]; Dow v. City of Oroville, 22 Cal. App. 215, 226 [134 Pac. 197] ; People v. Sampo, 17 Cal. App. 135, 149 [118 Pac. 957] ; Young v. Dunlap, 195 Mo. App. 119 [190 S. W. 1041, 1044]; Posener v. Harvey (Tex. Civ. App.), 125 S. W. 356.)
[10] “ Some controversy arose as to the proper foundation for the admission of photographs of the wrecked automobile in evidence. The rule is quite simple. Testimony