As to the usefulness and future of dipped raisins, not much can be said at present. Our importations of Valencia raisins, which are mostly dipped, are considerable, and as long as this class of cooking raisins is in demand, there is no good reason why we should not compete and endeavor to supply the demand. We can produce them as well as Spain can, and the only reason why we have not competed with Spain so far is that sun-dried raisins are so readily produced here, that it has not been to our advantage to produce anything else. There are, however, many places in our State which will grow Muscatel grapes of good quality, but with too thick skins to make them proper for sun-dried raisins. For all such localities the dipping process is to be recommended, as it will enable the growers to produce marketable raisins, and to profitably supply the demand for this variety of raisins now imported to this country from abroad. In localities with early and copious fall rains, the dipping process will enable the growers to finish quickly before the rains set in. California dipped second-crop Muscatels and Sultanas have brought as high as seven cents per pound wholesale. THE PACKING-HOUSE. BUILDINGS AND MECHANICAL APPLIANCES. _The Packing-house._--The packing-house should be large and airy and, whether it is made of lumber, brick or adobe, it should in preference to anything else be large. Room is needed at every operation in the packing-house, and it is hardly possible to get too much of it. So far no very large and perfect buildings for packing-houses have ever been erected in California; the raisin industry is too young for that, and even the best of our buildings are only temporary ones. It is here not possible nor desirable to give any instructions how to build and arrange a raisin packing-house, as every packer will have his own ideas and his own necessities in this respect, and not two packers would build alike. All we can do here is to refer to what is needed in a general way, in order that the reader will get some preliminary ideas of what he will require when his raisin vineyard comes in bearing.