William Strong

“ We think, therefore, that there was no error in admitting the record kept by the person employed for the purpose by the United States Signal Service.
The exceptions to the charge, though numerous, in our opinion point to no error. Without going through in detail the statute under which the village was organized and the powers conferred upon it, it is enough to say that it had ample authority to keep the streets and walks in a safe condition at all times for passage. And the power carried with it the duty of exercising it. ”

“ The Secretary of War is also required to provide, in the system of observations and reports in charge of the chief signal officer of the army, for such stations, reports, and signals as may be found necessary for the benefit of agriculture and commercial interests. Under these acts a system has been established, and records are kept at the stations designated, of which Chicago is one. Extreme accuracy in all such observations and in recording them is demanded by the rules of the Signal Service, and it is indispensable, in order that they may answer the purposes for which they are required. ”