The employee on May 16, 1932, filed a petition in the Superior Court asking to have the insurer adjudged in contempt for its alleged failure to comply with the terms of a final decree after rescript. After a hearing the judge of that court excluded certain evidence, hereinafter referred to, which was offered by the employee, and entered a decree adjudging that the insurer was not in contempt of court and dismissing the petition. Assuming for the purposes of this opinion, but without so deciding, that a judge of the Superior Court may report to this court a matter arising under the workmen’s compensation act, we find no error in the exclusion of evidence or in the decree entered. The Industrial Accident Board on March 12, 1931, reviewing the decision of a single member, found a stated sum due for partial compensation up to October 25, 1930, and that partial incapacity continued, and ordered the insurer to continue the payment of partial com*415pensation weekly “at the rate of two thirds of the difference between $37.56 and the employee’s actual earnings weekly subsequent to October 25, 1930, in accordance with the provisions of the act.” From a decree entered in the Superior Court based on this decision of the board, the insurer appealed to this court where the decree was affirmed, it being pointed out in the opinion that the report showed that the wages actually received by the employee after his injury were found to be the wages he was then able to earn. (See Korobchuk’s Case, 277 Mass. 534.) Thereafterwards on April 1, 1932, the decree after rescript was entered in the Superior Court. That decree ordered, adjudged and decreed that the employee “has partial incapacity for work resulting from personal injury . . . arising out of and in the course of his employment ... for which partial compensation is due on the basis of two thirds of the difference between $37.56, his average weekly wages before his injury, and the average weekly wages he has been able to earn subsequent to April 9, 193Ó, up to and including October 25, 1930, and continuing thereafter subject to all the provisions of the workmen’s compensation act.” The decree proceeded to recite that the amount due to October 25, 1930, was $165.65, which with interest up to May 25, 1931 (on which date the insurer had paid $165.65), amounted to $171.45, and ordered the insurer to pay the sum of $5.80 which was the amount of such interest. At the time of the filing of the petition for contempt on May 16, 1932, the insurer had paid this sum and all sums specifically mentioned in the decree. The evidence offered by the employee and excluded by the court was, in substance, that on March 23, 1932 (which was nine days before the decree after rescript was entered), the insurer and the employee made a written agreement which was approved by the department of industrial accidents (G. L. c. 152, § 6), to the effect that there was due the employee as partial compensation from October 25, 1930, to March 23, 1932, the sum of $400 “with right to further compensation open as to the future, in accordance with decree of Superior Court”; that the sum of $400 had been *416paid by the insurer; that there had been no further hearing or request for a hearing before the Industrial Accident Board and the above agreement had not been modified; that although the employee had requested further payments none had been made and that the employee had been unable to earn any wages at all since March 23, 1932, except the sum of $15 in an employment which he was unable to pursue because of his disabled condition.
The final decree after rescript was necessarily based on the decision made by the Industrial Accident Board on March 12, 1931. G. L. c. 152, § 11. “The decree must be that required as matter of law by the facts set forth in the decision of the board unless the decision is unsupported by evidence or tainted by error of law.” Lopes’s Case, 277 Mass..581, 585. A decree of the Superior Court entered on findings of partial incapacity made by the Industrial Accident Board, while a final decree for the purpose of an appeal and as to the amounts therein fixed as actually due as partial compensation on a stated date, is nevertheless revisable as to the amount of payments to be made after that date if on facts later found by the board such revision becomes necessary to make the decree accord with changed conditions. “Proceedings under the act ... do not necessarily end with the decree. . . . The statute contemplated that changes may take place which will require revision of an order for compensation; and it authorizes such revision. G. L. c. 152, §§ 7, 12.” Kareske’s Case, 250 Mass. 220, 226. A similar situation arises in proceedings brought by a wife for separate support where changed conditions are held to be ground for the revision of so much of the decree as deals with future payments. Churchill v. Churchill, 239 Mass. 443, 446. Williamson v. Williamson, 246 Mass. 270, 274. Burgess v. Burgess, 256 Mass. 99. “Weekly payments to be made in the future hardly can be disposed of finally by a present decree. This is especially true in cases of this nature because the act contains provision for reexamination by the Industrial Accident Board as to weekly payments. . . . That in the nature of things must be done from time to time as the weeks come. The order for the rate of weekly payment to *417continue subject to the provisions of the act is a proper part of the decree. The right thus can be declared. The fact of partial incapacity under the act and the payment of the gross sum found already to be due can be disposed of finally.” Johnson’s Case, 242 Mass. 489,494.
After reciting the formula by which the amount due up to October 25, 1930, should be computed in accordance with the statute (G. L. c. 152, § 35), the decree here entered adds the words “continuing thereafter subject to all the provisions of the workmen’s compensation act.” This is not in terms a present order of payment. The only specific order to the insurer contained in the decree is for the payment of $5.80. The amount which the insurer should pay as partial compensation was not necessarily a constant sum but was a sum determinable with reference to what the employee himself was able to earn from time to time. That amount was from time to time subject to revision by the board. The last quoted language of the decree does not express an obligation of the insurer, the amount of which in dollars and cents the Superior Court itself could estimate, since the findings of the board which were the necessary basis of the decree merely contain a formula for the ascertainment, and not a computation, of the amount of partial compensation due after October 25, 1930. The decree properly went no farther than the finding. It follows that the language quoted does not afford a basis for the employee’s petition for contempt. (See Johnson’s Case, 242 Mass. 489, 494.) The proper construction of the quoted words is that they are declaratory of a continuing right to compensation in an undetermined amount after October 25, 1930, inserted that it might be clear that the decree did not exclude compensation beyond that date. The workmen’s compensation act provides that when payment of compensation has begun it shall not be discontinued except with the written consent of the employee or the approval of the department of industrial accidents, “provided, that such compensation shall be paid in accordance with section thirty-five if the employee in fact earns wages after the original agreement is filed” (G. L. c. 152, § 29); and § 35 provides that when there is partial incapacity weekly *418compensation shall be paid equal to two thirds of the difference between the employee’s average weekly wages before the injury and the average weekly wages he is able to earn thereafter. Under the terms of the decree the continuing obligation of the insurer was to pay a sum to be so computed. It never has been computed. Its computation involves the process of finding facts. In proceedings under the workmen’s compensation act the finding of facts is the function of the Industrial Accident Board and not of the Superior Court. Pigeon’s Case, 216 Mass. 51, 52. Diaz’s Case, 217 Mass. 36, 37. Herrick’s Case, 217 Mass. 111, 112. Bentley’s Case, 217 Mass. 79, 80. Pass’s Case, 232 Mass. 515. Emma’s Case, 242 Mass. 408, 414. Kareske’s Case, 250 Mass. 220, 226. Di Giovanni’s Case, 255 Mass. 241. Lopes’s Case, 277 Mass. 581, 585. The employee contends that the statute should not be so construed that a recalcitrant insurer may impose hardship on an employee by compelling him from week to week to have an adjudication by the board as to the sum payable as partial compensation. We are not here deciding that a decree may not be entered on an appropriate decision by the board under which such conduct may be held to be in contempt. We presently decide only that on the -decree entered and on the facts now appearing the offered evidence was rightly excluded and the petition for contempt properly dismissed.
Decree affirmed.