The petitioner, Pearl P. Walker, conducted at Stockton a lodging-house containing seventeen rooms. The applicant, Louis J. Robinson, was employed by Miss Walker to do certain work in cleaning the house, and while so occupied met with an accidental injury which destroyed the sight of one of his eyes.

Section 14 of the Workmen’s Compensation Act excludes from the benefits of the law any person “whose employment is both casual and not in the usual course of the trade, business, profession or occupation of his employer.” The commission found that Robinson’s employment was casual, but that it was in the usual course of the business or occupation of the petitioner. It is contended, and this is the sole point made, that there was no evidence to support the latter part of this finding.

Our authority, with respect to the commission’s conclusions on questions of fact, goes no further than to permit the annulment of an award where the commission’s finding of a fact is without any evidence whatever to support it. Where there is a conflict in the testimony, or where opposing inferences may reasonably be drawn, the commission is the final arbiter.

The evidence embodied in the record indicates that it was a necessary part of petitioner’s business to keep the rooms and hallways of her lodging-house in a state of cleanliness and good order. A chambermaid was employed continuously. The maid was, however, not able to do all the work, and her *739 efforts had to be supplemented by a man called in from time to time. The work for which Eobinson was engaged was the taking up of carpets or matting, and the cleaning of walls, transoms, windows, and curtains. Miss Walker herself testified that she was in the habit of employing someone to do that kind of work occasionally, and the chambermaid stated that ever since Eobinson’s injury another man had been doing similar work off and on. This testimony warranted the conclusion that the employment of Eobinson was in the “usual course of the business” of the petitioner. The case is not like those cited by petitioner, in which occasional repairs or overhauling were held not to be covered by this phrase. Various cases of this kind, involving a construction of the English act, were reviewed by us in London & Lancashire Guarantee & A. Co. v. Industrial Accident Commission, 173 Cal. 642, [161 Pac. 2], and we there said: “In cases arising under that act the expression [‘course of business of the employer’] is held to cover the normal operations which form part of the ordinary business carried on, and not to include incidental and occasional operations having for their purpose the preservation of the premises or the appliances used in the business.” It would not be questioned that the chambermaid, in doing the cleaning which fell within her province, was engaged in normal operations forming part of the employer’s ordinary business. There was no essential difference in character between her work and that done by Eobinson. One was as necessary in the conduct of the business as the other, and neither was incidental, in the sense in which that term was used in the passage just quoted. The only distinction is that the maid’s work was done daily, while that of the man was called for at intervals. But the intermittent character of the employment is not of itself sufficient to exclude it from the purview of the statute. Section 14 does not except employments that are casual simply, but those that are both casual and not in the usual course of the business.

The award is affirmed.

Wilbur, J., Victor E. Shaw, J., pro tem., Melvin, J., Eichards, J., pro tem., and Angellotti, C. J., concurred.