There is a certain spirit of comity to which courts often give expression in rendering assistance to courts of other countries. This judicial comity has been defined as "the deference commonly paid by the courts of one jurisdiction to the laws or proceedings of another, in causes affecting rights claimed under such laws or proceedings."[Footnote: "Dict. of Philosophy and Psychology," _Comity_.] As between courts of the different States in the United States this sentiment naturally is particularly strong. In pursuance of it, it is usual, if there has been a judicial appointment in one State of a representative of the law to administer an estate of any kind, part of which is in another State, for the courts of the latter to give him such further powers or appointment as may be necessary to put in his possession or control whatever is within their jurisdiction. An administrator of the estate of a deceased person would thus be appointed, almost as a matter of course, administrator of such estate in whatever State property or rights of action belonging to it might be found. A receiver appointed by a court of equity to take possession of property would ordinarily, in like manner, be appointed to the same office wherever any part of such property might be situated; and in some States such an officer has been permitted to sue for it under his original appointment. The general doctrine, however, is that a receiver in chancery (that is, a receiver appointed by a court of equity) is simply an arm of the court which appoints him, and has no authority to act outside of the territorial jurisdiction of that court.[Footnote: Hale _v._ Allinson, 188 U. S. Reports, 56.] A receiver of an insolvent corporation often finds that it has shareholders living in several different States, who have not fully paid in their subscriptions to its capital stock. In such case, if the statute of the State under the laws of which it was incorporated provided for the appointment of a receiver for insolvent corporations of that character, he may be regarded in other States as one to whom each shareholder, in legal effect, promised to pay such part of his subscription as had not been previously paid to the corporation itself. On this theory of liability, a foreign receiver has a right of action by virtue of his official position, indeed, but not because of authority from a foreign court to use that position for such a purpose. He sues as one to whom the shareholder promised to make a payment, and on a direct contract between the two, which is implied by law.[Footnote: Fish _v._ Smith, 73 Conn. Reports, 377; 47 Atlantic Reporter, 711; 84 American State Reports, 161.]