to all travelling the road, and their concurrent negligence in the direct act which caused the injury. The case of the party-wall in this state was put on the same ground. The distinction between that case and this was sharply defined by our Brother Strong. It was there said that the maintenance of an insecure party-wall was a tort in which both participated. The act was single, and it was the occasion of th^ injury. The case is not to be confounded with actions of trespass brought for separate acts done by two or more defendants. Then if there be no concert, no common intent, there is no joint liability. Here, the keeping of the wall safe was a common duty, and a failure to do so was a common neglect: Klauder v. McGrath, 11 Casey 128. In principle, Bard et al. v. Yohn, 2 Id. 482, more resembles this case. There the effects of the independent acts of the defendants on the opposite sides of the street united in causing the injury, but they were not jointly liable, because there was no concert in the acts themselves.
It is needless to notice other questions arising upon the alleged negligence, excepting to say that the defendants as lessors were not liable for the acts of their tenants, not shown to have been done under their authority or command. The mere relation of landlord will not make the lessor liable for the negligence of his tenant: Bears v. Ambler, 9 Barr 193; Offerman v. Starr, 2 Id. 394.
Taking together all the judge said upon the measure of damages, it is not clear he committed a manifest error. There was an inaccuracy in the answer to the defendants’ 7th point, as to the profits that might have been made, which would appear to allow too much latitude in estimating imaginary losses, and will be corrected in another trial. The jury, however, seem to have gone astray in estimating the property as a total loss from 1851 to 1858. The correction, however, fell within the province of the court below.
The objection to the calculations sent out with the jury cannot be urged. No bill of exception was sealed. As a general rule, with some exceptions, the sending out of papers with the jury is regulated by the sound discretion of the court: O’Hara v. Richardson, 10 Wright 389.
The bills of exception to the evidence need no particular notice. We perceive nothing in them pointing to any manifest error.
The judgment is reversed, and a venire facias de novo awarded.