The expenses of the family and the education of the children are chargeable upon the property of both husband and wife, or of either of them, and in relation thereto they may be sued jointly or separately. [§3405.] Both husband and wife are personally responsible for family expenses. The credit may be extended to the husband and the contract made with him alone, and the wife will be liable though she may have no knowledge of the purchase and has given no consent thereto. It is sufficient to show that the articles were used, or kept for use in the family, and a judgment may be rendered against the wife alone. But the husband cannot subject the property of his wife to any liability for articles for family use when it appears that such articles were not a necessity, if the wife has objected to the purchase and notified the seller that she will not pay for the same. "Expenses of the family," are not limited to necessary expenses, but whatever is kept or used in the family is included in the term. A piano, an organ, a watch and other jewelry, a cook stove and fixtures, have all been held to come within the term "family expense," for which the property of the wife is liable. But a reaping machine, though used by the husband in the business by which he supports his family, is not a legitimate item of family expense, nor can a plow be included therein. The expense of treatment of a wife at a hospital for the insane, has been held not to be a family expense. Money borrowed by the husband and used in the purchase of articles which, if obtained on credit, would constitute items of family expense, cannot itself form such an item of family expense, that the wife may be held liable, unless the money was furnished at her request, and the account assigned to the party furnishing the money. If a merchant with whom the husband has no account is notified in writing, not to sell goods to the wife and charge them to him, the merchant cannot hold the husband responsible, unless it appears that the latter fails to provide necessaries otherwise for his family. If the family is supported in whole, or in part, by the wife, she cannot recover back the money thus expended, from her husband or his estate, as the law places such duty equally on both. [Sidenote: Removal from homestead.] Neither husband nor wife can remove the other, nor their children from their homestead without his or her consent, and if he abandons her, she is entitled to the custody of their minor children, unless the district court, upon application for that purpose, shall, for good cause, otherwise direct [§3406.] [Sidenote: Conveyance of property.]