In one experiment potatoes cut to single eyes with each piece weighing one-sixteenth of an ounce yielded 44 bushels to the acre, while single eyes on two-ounce pieces yielded 177 bushels to the acre. Experiments in Indiana showed that the yield usually increased with the weight of the set and that the exact number of eyes per cutting is relatively unimportant. Potato Scab. Can potatoes be treated in any way before planting to prevent the new ones from being what is called "scabby"? There are two successful treatments for scab in potatoes. One is dipping in a solution of corrosive sublimate. Dissolve one ounce in eight gallons of water and soak the seed potatoes in this solution for one and one-half hours before cutting. This treatment kills the scab spores which may be upon the exterior of the potatoes. More recently, however, to avoid danger in handling such a rank poison as corrosive sublimate, formaldehyde has been used, and one pint of commercial formaldehyde, as it is bought in the stores, is diluted with thirty gallons of water, and potatoes are soaked in this for two hours. Thirty gallons of this dip ought to treat about fifty bushels of potatoes. Double-Cropping with Potatoes. I am told that here two crops of potatoes can be raised by planting the second crop in August. I have five acres which will be ready to dig in July. Can I dig these Potatoes and use them for seed at once for another crop, or won't they grow? I have a crop of barley, and as it is heading out now, I want to put potatoes on the ground after I take the barley off. I have plenty of water to irrigate. If your potatoes ripen in July and you allow those which you desire for seed to lie upon the ground and become somewhat greenish, they are likely to sprout well for a second crop. They should not, however, be planted immediately. Whether you get a second crop successfully or not depends upon how early the frosts come in your district. Whether you get potatoes after barley or not depends also upon how much moisture there remains in the soil. By irrigating thoroughly after harvesting the grain and then plowing deeply for potatoes, you would do vastly better than to plant in dry ground and irrigate afterward. When to Plant Potatoes. I have been puzzled to understand Potato growing in California. Do you have more than one cropping season, and if so, about what dates are they due?