cause the tenant fails to pay rent; 69 Hun 588. See other cases of uncertain duration, 9 Johns. 112; 8 Viner, Abr. 864; 3 Pa. 496. But it is otherwise if the tenancy is deter- mined by an act of the tenant which works a forfeiture; asif, being a woman, she has a lease for a term of years provided she re mains so long single, and she terminates it by marrying; for this is her own act; 8 B. & Ald. 470; 1 Price 58; 8 Wend. 584. A landlord who re-enters for a forfeiture takes the emblements; 7 Bingh. 154. Where a tenant wrongfully retains posses- sion of land after his term has expired, crops planted by him so long as they remain unsevered, belong to the landlord; 45 Mo. App. 505. See LANDLORD AND TENANT. All such crops as in the ordinary course of things return the labor and expense be- stowed upon them within the current year become the subject of emblements,-con- sisting of grain, peas, beans, hemp, flax, and annual roots, such as parsnips, carrots, tur- nips, and potatoes, as well as the artificial grasses, which are usually renewed like other crops. But such things as are of spontaneous growth, as roots and trees not annual, and the fruit on such trees, although ripe, and grass growing, even if ready to cut, or a second crop of clover, although the first crop taken before the end of the term did not repay the expense of cultiva- tion, do not fall within the description of emblements; Cro. Car. 515: Cro. Eliz. 463; 10 Johns. 361; Co. Litt. 55b; Tayl. Landl. & T. § 534; Woodf. Landl. & T. 750. But although a tenant for years may not be entitled to emblements as such, yet by the custom of the country, in particular districts, he may be allowed to enter and reap a crop which he has sown, after his lease has expired; Dougl. 201; 16 East 71; 7 Bingh. 465. The parties to a lease may, of course, regulate all such matters by an express stipulation; but in the absence of such stipulation it is to be understood that every demise is open to explanation by the general usage of the country where the land lies, in respect to all matters about which the lease is silent; and every person is supposed to be cognizant of this custom and to contract in reference to it; 2 Pet. 138; 5 Binn. 285. The rights of tenants, therefore, with regard to the away-going crop, will differ in different sections of the country; thus, in Pennsylvania and New Jersey a tenant is held to be entitled to the grain sown in the autumn before the ex- piration of his lease, and coming to matu- rity in the following summer; Mitch. R. P. 24; 54 Pa. 143; 2 South. 460; 13 Conn. 59; 24 N. J. L. 89; while in Delaware the same custom is said to prevail with respect to wheat. but not as to oats; 1 Harr. Del. 522; and trespass will lie against one who interferes with the land to the injury of the outgoing tenant; 6 Houst. 584. Of a similar nature would be the tenant's right to remove the manure made upon the farm during the last year of the tenancy. Good husbandry requires that it should either be used by the tenant on the farm, or left by him for the use of his successor; and such is the general rule on the subject in England as well as in this country; 15 Wend. 169; 2 Hill, N. Y. 143; 2 N. Chipm. 115; 1 Pick. 371. A different rule has been laid down in North Carolina; 2 Ired. 326; but it is clearly at variance with the whole current of American authorities upon this point. See MANURE. Straw, however, is incidental to the crop to which it belongs, and may be removed in all cases where the crop may be; 22 Barb. 568; 1 W. & S. 500. There are sometimes, also, mutual privi- leges, in the nature of emblements, which are founded on the common usage of the neighborhood where there is no express agreement to the contrary, applicable to both outgoing and incoming tenants. Thus, the outgoing tenant may by custom be en- titled to the privilege of retaining posses- sion of the land on which his away-going crops are sown, with the use of the barns and stables for housing and carrying them away; while the incoming tenant has the privilege of entering during the continu- ance of the old tenancy for the purposes of