(after stating the facts). Under the act of Congress regulating the shipment of live stock from one State to another, the Secretary of Agriculture is authorized to establish rules and regulations concerning the exportation and transportation of live stock from one State to another where he may have reason to believe certain contagious diseases exist.
Pursuant to this authority the United States Bureau of Animal Industry appointed an inspector with supervision over the Kansas City Stock Yards at Kansas City, Mo. His duties required him to inspect all cattle from southern points before they were unloaded and to place cattle which were clean and free from ticks in certain pens and those infected with fever ticks in other pens. Such laws are valid. K. C. S. Ry. Co. v. State, 90 Ark. 343, and Reid v. Colorado, 187 U. S. 137.
Pursuant to the authority conferred by the act of Congress, the shipment of cattle in question was inspected when it arrived at Kansas City. Burns testified that he found a Texas fever tick on one of the cows and on that account had the cattle unloaded in quarantine. On this account appellees sold the cattle at a loss. Hence this lawsuit.
Counsel contend that a verdict should have been directed in appellant’s favor under the undisputed evidence. Of course, if the undisputed evidence showed that a cattle tick was found on one of the cows and did not get on the cow en route, appellant would not be liable because the cattle were placed in quarantine pursuant to an act of Congress.
In the first place, it is contended by counsel for appellant that the undisputed evidence shows that a cattle tick was found' on one of the cows upon the arrival of the consignment at the chutes. They point to the fact that the United States inspector testified to that fact, that he is a disinterested witness, and that there is nothing in his testimony which tends to contradict him. This is true, but that does not make his testimony uncontra-dicted. The cattle were shipped from clean territory and were billed as clean cattle. Appellees testified that they had dipped the cattle strictly according to regulations before they were shipped; that they examined them carefully at the time of shipment, and that they were free from ticks. This testimony tends to contradict the testimony of Burns, the United States inspector. Mo. Pac. Rd. Co. v. Block, 142 Ark. 127.
Again it is contended by counsel for appellant that the judgment must be reversed because the undisputed evidence shows that an adult cattle tick could not have gotten on one of the cows between the dato of shipment and the date of the arrival of the cattle at Kansas City, Mo. The cattle were only three days en route.
In this contention we think they are correct. In St. Louis S. W. Ry. Co. v. Ellenwood, 123 Ark. 428, the court held that appellate courts will take notice of the unquestioned laws of nature, of mathematics and the like. In the application of that rule to the facts of the present case, the court will take notice of the unquestioned laws of science. Dr; Carey testified, without objection, that the inspector delivered to him an adult cattle tick which he had taken from one of the cows of appellees at the stock yards before he allowed the car of cattle to he unloaded. So it may be taken as established that an adult cattle tick was found on the shipment of cattle in question by the United States inspector. The expert witnesses testified that it would take two weeks for the tick to have developed. They point out that the tick only develops while on the animal. Thus it will be seen that it is a scientific fact that it takes two weeks for an adult cattle tick to be developed and that the development must take place on the animal. Therefore, the undisputed evidence shows that if an adult cattle tick was found upon the animal by the inspector, it could not have gotten on the animal en route.
Counsel for appellees insist that the laws of science sometimes change. It is sufficient answer to this to say that in this respect the law has not yet been questioned and is a scientific fact. The expert witnesses all agree that it is impossible as a scientific fact for a seed tick to develop into an adult tick in less than two weeks and that the molting process must take place on the animal. Therefore, the undisputed evidence shows that, if the tick was on the animal, it was there before the cattle were delivered to the railroad company for shipment, and the railroad company was not guilty of any negligence in the premises while the cattle were in its possession for shipment and delivery to the consignee. Liability then could only be predicated on the theory that the cattle were free from ticks when they were received for shipment. As we have already seen, the testimony of the United States inspector to the effect that he found a cattle tick on one of the cows at the unloading of the chute in Kansas City is not undisputed, but it does not follow that the railroad company would be liable on that account. While the testimony in this respect is not undisputed, still there is nothing to show that the railroad company acted in collusion with him in the premises. In the absence of such a showing, the railroad company would not be liable. The railroad company was bound by the rules and regulations promulgated by the Secretary of Agriculture, and it could not be held liable in damages for a mistake of one of the inspectors of the United States in the absence of fraud and collusion on the part of the railroad company.
There is nothing in the record tending in the remotest degree to establish this charge. Indeed the evidence shows the utmost good faith on the part of the. railroad' company.
It follows that the judgment must be reversed and the cause remanded for a new trial.