HOFFMAN, Judge:

Appellant contends that the lower court erred when it sustained preliminary objections to her complaint in assumpsit for retroactive support. We do not agree and, therefore, affirm the dismissal of appellant's complaint.

On December 30, 1974, appellant filed a complaint for support for herself and her minor child in the Court of Common Pleas of Montgomery County. On February 14, 1975, the lower court ordered appellee to pay $110 per week from the effective date of the order. No appeal was taken from this order.

On May 13, 1975, appellant filed a complaint in assumpsit alleging, inter alia, that she and appellee were married on June 25, 1951, that she has custody of the parties' minor child, that appellee deserted her on December 7, 1974, and that he provided only $60 per week in support from that date until the entry of a support order for $110 per week on February 14, 1975. Appellant does not allege that she expended any of her own money for the support of herself and her child during the period from December 7, 1974, to February 14, 1975. On April 2, 1975, appellee filed preliminary objections to appellant's complaint raising the bar of res judicata, a demurrer, and misjoinder. The lower court granted appellee's preliminary objections on July 17, 1975; this appeal followed. Appellant contends that she has stated a valid cause of action under the Act of May 23, 1907, P.L. 227, § 1 et seq., as amended, 48 P. S. § 131 et seq., and that the Act authorizes retroactive support to the date of separation.

The Act of May 23, 1907, P.L. 227, as amended, provides that if any man shall separate himself from his wife without reasonable cause, and is able to support his wife and children but does not do so, she is empowered to bring an action, at law or in equity, against her husband for maintenance, in the court of common pleas of the county where the desertion occurred, or where she is domiciled. The Act further provides that the wife may proceed against any property, real or personal, of the husband necessary for the suitable maintenance of the wife and children and that the court may direct a seizure and sale, or mortgage, of all or part of the husband's estate to provide sufficient funds to discharge the husband's obligation. See Drummond v. Drummond, 414 Pa. 548, 200 A.2d 887 (1964); Grimes v. Grimes, 403 Pa. 638, 170 A.2d 114 (1961); MacDougall v. MacDougall, 397 Pa. 340, 155 A.2d 358 (1959); Crane v. Crane, 373 Pa. 1, 95 A.2d 199 (1953); Erdner v. Erdner, 234 Pa. 500, 83 A. 420 (1912); Gessler v. Gessler, 181 Pa. Super. 353, 124 A.2d 502 (1956); Eldredge v. Eldredge, 128 Pa. Super. 284, 194 A. 306 (1937); Yetter v. Yetter, 45 Pa. Super. 332 (1911); Dixon v. Dixon, 5 Pa. D. C.2d 634 (1955); Malone v. Malone, 82 Pa. D. C. 479 (1952).

The Act of 1907 authorizes two types of actions: one in personam and one in rem. The first of these is an action by the deserted wife to recover from her husband the amount expended from her separate estate for the necessary support and maintenance of their children, and for herself unless barred by her conduct. Gessler v. Gessler, supra; Adler v. Adler, 171 Pa. Super. 508, 90 A.2d 389 (1952). It is based upon the husband's legal duty to support his wife and children. When he neglects this duty, one who supplies necessaries for their support is entitled to recover their cost in an action under the common law, which raises an implied promise by the husband to repay. Keller v. Commonwealth, 71 Pa. 413 (1872); Samuels v. Hirz, 189 Pa. Super. 492, 151 A.2d 640 (1959); Gessler v. Gessler, supra, 181 Pa.Super. at 361-62, 124 A.2d at 505-506 (1956); Restatement, Restitution, § 76. Until the adoption of the Act of 1907 which eliminated the wife's incompetency under the common law to bring such an action, the wife's only remedy was to resort to criminal proceedings. See Keller v. Commonwealth, supra; Adler v. Adler, supra.

The second form of action authorized by the Act is an action in rem for future support. The court may order that real or personal property of the husband be sold or mortgaged to create a fund sufficient to support the wife and children. Crane v. Crane, supra; Jones v. Jones, 344 Pa. 310, 312, 25 A.2d 327 (1942). A proceeding under the Act will be treated as one for relief in personam or in rem as the facts averred in the petition indicate, and the court should grant relief to the extent of its power. Eldredge v. Eldredge, supra.

Until the adoption of the Civil Procedural Support Act, which allows an order of support to be made effective from the date of the filing of the complaint, all orders of support were made effective from the date of the order. See Keller v. Commonwealth, supra; Commonwealth ex rel. Eppolito v. Eppolito, 245 Pa. Super. 93, 369 A.2d 309 (1976); Commonwealth ex rel. Bishop v. Bishop, 234 Pa. Super. 600, 341 A.2d 153 (1975); McGavic v. McGavic, 222 Pa. Super. 246, 294 A.2d 795 (1972); Commonwealth ex rel. Herman v. Herman, 97 Pa. Super. 453 (1929); Commonwealth v. MacMaster, 88 Pa. Super. 37 (1926). Although the Act of 1907 does not specify when support orders made under its authority are to be effective, it is important to remember that the Act of 1907 changes the common law disability of a wife to pursue her own support action without resort to the penal law. We are required to give narrow construction to all acts of the Legislature adopted prior to May 28, 1937, which are in derogation of the common law. Act of May 28, 1937, P.L. 1019, art. IV, § 58; 46 P. S. § 558. See Wallaesa v. Wallaesa, 174 Pa. Super. 192, 100 A.2d 149 (1953). We must, therefore, presume that the Act of 1907 did not disturb the well-established rule that support orders were prospective from the date of the order only. Keller v. Commonwealth, supra.

We are supported in the conclusion that the Act of 1907 did not change the law regarding retroactivity of support orders by two cases which have interpreted the Act. In Jones v. Jones, 348 Pa. 411, 35 A.2d 270 (1944), a New York resident appeared specially to contest the jurisdiction of the Pennsylvania court in an action brought by his wife under the Act of 1907 to attach his interest in certain trust estates which were vested subject to divestment if he predeceased his mother. See Jones v. Jones, 344 Pa. 310, 25 A.2d 327, supra. After protracted litigation involving three appeals to our Supreme Court, the Court finally entered a support order and made it effective from the date of the order of the lower court from which the first appeal was taken. Citing Keller v. Commonwealth, supra; Commonwealth ex rel. Herman v. Herman, supra. Thus, in affixing the earliest possible effective date of the support order for an action brought under the Act of 1907, the Supreme Court chose to adopt the practice of prior cases brought under the criminal support statutes.

In Gessler v. Gessler, supra, 181 Pa.Super. at 361, 124 A.2d at 505, our Court recognized that "[s]ection 2 of the Act of 1907 provides for an action in rem against the husband's property in a proceeding for future `suitable maintenance' of the wife; it does not prescribe the procedure for the collection of the value of necessaries which had been supplied for the support of the wife and minor children." (Emphasis in original). The Court clearly characterized the two actions authorized by the Act as an action for future support and an action for past expenditures. We, therefore, conclude that to the extent that a court characterizes an action brought under the Act of 1907 as one for support, an award may be granted only prospectively from the date of the order. Cf. Jones v. Jones, supra; Gessler v. Gessler, supra.

In the instant case, appellant's complaint does not allege that she expended any funds from her separate estate during the period between the date of the alleged desertion, December 7, 1974, and the effective date of the support order, February 14, 1975. We have concluded that the Act of 1907 authorizes a suit by a deserted wife if she has made such expenditures. The lower court, therefore, properly sustained appellee's preliminary objections on this ground.

We have also determined that the Act of 1907 authorizes a deserted wife to sue for support. There are two distinct reasons why the lower court properly sustained appellee's preliminary objections if we construe appellant's complaint as one for support. First, as we have noted, the Act of 1907 does not change the common law rule that an award of support will only be made effective from the date of the order. Second, appellant had already proceeded against appellee for support in an action commenced under the Civil Procedural Support Act, supra, which does allow an award of support retroactive to the date of filing the complaint. Appellant did not raise a claim to retroactive support and did not appeal from the court's order which gave support effective from the date of the order. It is well-settled that, when a court of competent jurisdiction has determined a litigated cause on its merits, the judgment entered and not appealed from is, as between the parties to the suit, final and conclusive with regard to all points of law relating directly to the cause of action in the litigation. Borjes v. Wich, 171 Pa. Super. 505, 90 A.2d 288 (1952). The Civil Procedural Support Act did not create any new causes of action or substantive rights; the obligation of support is predicated upon the common law and the Crimes Code. Scuro v. Scuro, 226 Pa. Super. 592, 323 A.2d 49 (1974). Thus, when appellant litigated and did not appeal her claim to support under the Civil Procedural Support Act, the order entered in that proceeding became res judicata on the issued of her entitlement to a retroactive award of support. Appellant could have attempted to establish her right to retroactive support at that time, but did not. She will not be allowed to commence a new action to re-litigate that issue.

Thus, if construed as a complaint in assumpsit for past expenditures, appellant's complaint was properly dismissed because it failed to allege such expenditures. if construed as a complaint for support, appellant's complaint was properly dismissed because the Act of 1907 does not authorize retroactive support orders and because her complaint was barred by res judicata.

Order affirmed.

SPAETH, J., concurs in the result.

VAN der VOORT, J., files a dissenting opinion.