SOLICITOR OP THE TREASURY. The title of one of the officers of the United States, created by the act of May 29, 1830, 4 Sharsw. cont. of Story, L. U. S. 2206, which prescribes his duties aud his rights.

2. - 1. His powers and duties are, 1. Those which were by law vested and required from the agent of the treasury of the United States. 2. Those which theretofore belonged to the commissioner, or acting commissioner of the revenue, as relate to the superintendence of the collection of outstanding direct and internal duties. 3. To take charge of all lands which shall be conveyed to the United States, or set off to them in payment of debts, or which are vested in them by mortgage or other security; and to release such lands which had, at the passage of the act, become vested in the United States, on payment of the debt for which they were received. 4. Generally to superintend the collection of debts due to the United States, and receive statements from different officers in relation to suits or actions commenced for the recovery of the same. 5. To instruct the district attorneys, marshals, and clerks of the circuit and district courts of the United States, in all matters and proceedings appertaining to suits in which the United States are a party or interested, and to cause them to report to him any information he may require in relation to the same. 6. To report to the proper officer from whom the evidence of debt was received, the fact of its having been paid to him, and also all credits which have by due course of law been allowed on the same. 7. To make rules for the government of collectors, district attorneys and marshals, as may be requisite. 8. To obtain from the district attorneys full accounts of all suits in their hands, and submit abstracts of the same to congress.

3. - 2. His rights are, 1. To call upon the attorney-general of the United States for advice and direction as to the manner of conducting the suits, proceedings and prosecutions aforesaid. 2. To receive a salary of three thousand five hundred dollars per annum. 3. To employ, with the approbation of the secretary of the treasury, a clerk, with a salary of one thousand five hundred dollars; and a messenger, with a salary of five hundred dollars. To receive and send all letters, relating to the business of his office, free of postage.

SOLIDO, IN, civil law. In solido, is a term used to designate those contracts in which the obligors are bound, jointly and severally, or in which several obligees are each entitled to demand the whole of what is due.

2. - 1. There is an obligation in solido on the part of debtors, when they are all obliged to the same thing, so that each may be compelled to pay the whole, and when the payment which is made by one of them, exonerates the others towards the creditor.

3. - 2. The obligation is in solido, or joint and several between several creditors, when the title expressly gives to each of them the right of demanding payment of the total of what is due, and when the payment to any one of them discharges the debtor. Civ. Code of La. 2083,2086; Merl. Repert. h. t.; Domat, Index, h. t. See In solido.