delivered the opinion of the court:
This cause comes up on au appeal from the Second Judicial Circuit, Jefferson county.
The action was to recover certain moneys claimed to be due on a debt owed by the county of Jefferson to the appellees, which debt was represented by certain so-called. *226bonds, issued by the County Commissioners of Jefferson county, in the year 1866-7, which bonds were designated in the record as the “ White Bonds,”
The assignments of errors are as follows :
1. There can be but one final judgment in an action at law and when that is rendered the court has no further jurisdiction to entertain further plaints of the plaintiff, or to allow new issues to be joined, and the court erred in allowing this cause to proceed after the first final judgment for these purposes against the objections of the plaintiff in appeal, who was defendant in the court below.
2. The final judgment rendered in this action on the 1st day of December, A.D. 1884, disposed of and terminated the case and the court erred in requiring the plaintiff in appeal to plead to the merits as presented by a new declaration, filed subsequent to the said judgment.
8. All the proceedings herein subsequent to the date of the final judgment aforesaid were coram non judice and the court erred in entertaining the same.
4. The court erred in overruling the plea of the plaintiff in appeal to the new, further and amended declaration, filed by the defendant in appeal subsequent to the final judgment aforesaid, urged upon the ground that the said defendant had no further right to sustain his said action, which said plea was demurred to by said defendant, and the said plea should have been sustained and the demurrer thereto should have been overruled.
5. The new, further and amended declaration aforesaid was defective in its second count, for reasons set forth in the demurrer thereto and the court erred in not sustaining said demurrer.
6. The defendant in appeal having declared upon certain bonds as issued upon certain date and upon the authority of a public board of limited power of a stated date, and the *227said bonds purporting upon their face to be issued upon such authority and at such date, could not support his ease by proof of authority, or assumed authority, of a date later than that alleged in the declaration and subsequent to the actual date of the bonds, and the court erred in admitting ■evidence of such later authority and of later acts ■ of the County Commissioners after the issue of the bonds against plaintiffs objections.
7. The White bonds were illegal and void and were not a proper basis upon which the defendant in appeal could recover, and their connection with the cause was not made apparent, and the court erred in allowing them to be read in evidence.
8. The court erred in refusing to strike from the evidence before the jury retired the entries in the book designated as the record of county bonds relating to the new, or white bonds, issued to Wm. Bailey.
9. The court erred in charging the jury, both in giving the instruction objected to by the plaintiff in appeal and in refusing those asked for by said plaintiff.
10. The court erred in refusing to set aside the verdict of the jury and grant a new trial.
11. The County Commissioners had no power in the issue of negotiable bonds beyond that given by the statute under which they acted. They had no power to issue new bonds or to enlarge the old debt, or to make a new arrangement with reference thereto. Their duty with reference to the bonded indebtedness authorized by such statute upon its maturity was to levy a tax for its payment, and
■ all parties had notice of their powers and were bound thereby, and the court erred in sustaining exercise of other power in the premises.
12. The County Commissioners under the statute authorizing the issue of the bonds to pay for the railroad stock *228mentioned in the declaration had no authority to pay interest and the bondholders had notice thereof. When they made arrangement to do this by the new issue of coupon bonds bearing interest, they exceeded their powers, and the defendant in appeal and his testator who accepted the said bonds, when they received interest upon interest,, were equally in fault, and the amount of the county money unlawfully paid and received by this arrangement as interest should be credited upon the original interest and should not be upheld as a payment? of interest upon interest, and the court erred in charging the jury to the contrary.
13. If the defendant in appeal were entitled to recover interest upon his demand, or any part thereof, he should receive such interest at the rate of six per cent, per annum,, and the court erred in charging that interest should be included in the judgment at a higher rate.
14. The second judgment rendered works wrong and injustice to the plaintiff in appeal.
15. The second judgment rendered herein was illegal,, and if a second judgment could properly have been rendered it should have been rendered for the plaintiff in appeal and not in favor of defendant.
McClellan’s Digest, page 829, section 71, reads as follows: “ Causes of action of whatever kind, provided they . be by and against the same parties and in the same rights, may be-joined in the same suit, but this shall not extend to replevin or ejectment, and when two or more of the causes-of action so joined are local and arise in different counties the venue may be laid in either of such counties,, but the court or judge shall have power to prevent the trial of different causes of action together, if such trial would be inexpedient, and in such case such court or judge may order separate records to be made up and separate trials to *229'be had.” By virtue of the powers vested in him by that section the judge below ordered a separate record and trial •of the issues and allowed the separate issues, designated for •convenience the “ blue bonds ” and “ white bonds,” to be made up, and judgment was entered on the “ blue bonds.” When the issues were joined on the “ white bonds ”- the judgment on the “blue bonds” allowed by the judge was set up as a bar to the suit on the “ white bonds.” The amount sued for in the “ white bonds ” and the moneys due were not one and the same with those of the “ blue bonds ” upon which judgment had been rendered. The cause of action was different. The issue was still undetermined and the court below did not err in overruling the plea. The ■statute leaves the consolidation of causes of action, and the making of separate records and causing separate trials, to be had within the discretion of the judge or court. Appellate Courts will not review the acts of a court below that are discretionary, unless the discretion has been abused or hardship has worked to the injury of either party. We find no abuse of discretion and certainly no hardship was wrought. While it would be always better to have but one judgment when one can be had—when separate records are made up and separate trials had, it is not error to have separate judgments.
The next error assigned is that the court erred in overruling the demurrer to the second count in the amended declaration.
It is clearly beyond cavil that the “ blue bonds ” were legal bonds legally issued, and a just indebtedness of the county of Jefferson. Such being the case, when the county took up the “ blue bonds ” with the “ white bonds ” they did not extinguish the debt. If the issue of the “ white bonds ” was illegal, as it clearly was, the debt remained due until paid. In the declaration, the “ blue bonds ” are *230correctly declared upon, and the “ white bonds ” are referred to as accounting for the shape that the indebtedness was in at the time of the bringing of the action. It was the plaintiff’s statement of his cause of action, fully putting the defendant in possession of all the facts necessary to set forth his pleas. If it did not set forth that the “ white bonds ” were issued legally and by virtue of authority from the Legislature, it set out that the original indebtedness was duly authorized and created in accordance with the statute, and set forth that said indebtedness was still unpaid. The court did not err in overruling the demurrer. There was still a third count under which the action and the evidence under it could have been maintained.
It is clearly settled that a county has not the power to issue bonds unless that power is conferred upon them by the Legislature, and then every essential requirement of the statute must be followed. The “ blue bonds ” were legal. The “ white bonds ” were not and were invalid. The county could not wipe out its indebtedness justly created by an illegal act. The plaintiff had a good cause of action against the county. The evidence admitted by the court tended to show the existence of that indebtedness. It was clearly admissible to enable the jury to determine the rights and issues of the cause.
The only question left to be decided is the question of interest.
It has been settled by this court that the interest of the contract as expressed in the “ blue bonds ” continues until payment of the principal at the- original rate of eight per cent. Jefferson County vs. B. C. Lewis, 20 Fla., 981.
•Although it has been intimated by this court in 18 Fla. that coupons past due do not bear interest, we are clearly of the opinion that the weight of authority is as it is now held *231in the U. S. Courts, and most of the State courts, that coupons do bear interest after maturity. What interest should have been allowed on so much of the judgment as embraced past due coupons ? Clearly when it is not expressed in the coupon itself that it bear a certain rate of interest after maturity only the legal rate of interest at the time of its maturity can be allowed. That was six per cent., and there was error in allowing eight per cent. This question has been fully decided in the U. S. Supreme Court in Cromwell vs. County of Sac, 96 U. S., 51.
It is urged by the appellants that all of the interest over six per cent, that they have paid should be allowed on the principal as a payment, and they given credit for the same.
It has been held that “ money voluntarily paid upon claim of right, with full knowledge of all the facts, cannot be recovered back merely because the party at the time of payment was ignorant or mistook the law as to his liability.”
The illegality of the demand paid constitutes of .itself no ground for relief, but there must be in addition some compulsion or coercion attending its assertion which controls the conduct of the party making the payment. To constitute such compulsion or coercion as will render payment involuntary, there must be some actual or threatened exercise of power possessed or supposed to be possessed by the party exacting or receiving the payment over the person or property of the party making the payment, from which the latter has no other means of immediate relief than by advancing the money. The fact that a party pays money under protest does not change the character of the transaction or enable him' to recover it back, unless the payment was under duress or coercion, or when undue advantage is taken of his situation. The object of a protest in such case is to take from the payment its voluntary *232character, and thus preserve to the party a right of action to recover back the money. But where no such compulsion exists or no advantage is taken there is no case of its -interposition. If the payment is in truth voluntary no language used on the occasion can change its character. Brumagim vs. Tillinghast, 18 Cal., 265. The above decision of the California court states, we think correctly, the general rule and law in reference to voluntary payments made under mistake of law.
There is no evidence of record to show anything other than that the payments were voluntary, and unless there is such the appellants cannot recover back.
We have referred to all the assignments of errors that require our notice, aqd it is ordered that the case be remanded to the court below with instructions to grant a new trial, unless the plaintiffs in the judgment file in the said court a remittitur for so much as covers the difference between the eight per cent, interest allowed in the judgment on the bonds given for matured coupons, and six per cent, interest which should have been allowed on said bonds.