"In this respect," said Stolo, "what Cato says about planting is in point, that a field which is rich and in good heart and without shade should be planted in corn, while a low lying field should be set in turnips, radishes, millet and panic grass." _Of planting olives_ XXIV. Scrofa resumed: "The varieties of olives to plant in rich and warm land are the preserving olive _radius major_, the olive of Sallentina, the round _orchis_, the bitter _posea_, the Sergian, the Colminian, and the waxy _albicera_: which ever of these does best in your locality, plant that most extensively. An olive yard is not worth cultivating unless it looks to the west wind and is exposed to the sun; if the soil is cold and thin there you should plant the Licinian olive, for if you set out this variety in a rich and warm soil it will never make a _hostus_ and the tree will exhaust itself in bearing and will become infected with red moss. (_Hostus_ is the country name for the yield of oil from a single tree at each _factus_ or pressing: some claim this should amount to 160 _modii_, while others reduce it to 120 _modii_, and even less in proportion to the size and number of their storage vats.) "Cato advises you to plant elms and poplars around the farm so as to obtain from them leaves to feed the sheep and cattle as well as a supply of lumber: while this is not necessary on all farms, nor in some for the forage alone, it may be done with advantage as a wind break against the north where the trees will not shut out the sun." Stolo added the following advice from the same author: 'If you have a piece of wet ground there plant cuttings of poplars, and also reeds which are set out as follows: having turned the sod with a hoe plant the scions of reed three feet one from the other. Wild asparagus (from which you may cultivate garden asparagus) should also be set out in such a place because the same kind of cultivation is suitable for it as for reeds. You should set out Greek willows around the reed bed to supply ties for your vines.' _Of planting vines_ XXV. "In respect of planting vines," resumed Scrofa, "it should be observed that the varieties fitted for the best land and exposure to the sun are the little Aminean, the twin _Eugeneam_ and the little yellow kind: while on rich or wet land the best varieties are the large Aminean, the Murgentine, the Apician and the Lucanian. Other vines, and especially the mixed varieties, do well in any kind of land." XXVI. "In all vineyards care is taken that the prop should shelter the vine against the north wind. And if live cypresses are used as props they are planted in alternate rows and are not allowed to grow higher than is necessary for use as a prop. Cabbages are never planted near vines because they do each other damage."