If we owe to two ladies the success of orange culture in California, it was a third who saved the industry when ruin threatened it. For a while all went merrily with the orange grower; then in some way, from Australia, there came into the country an insect pest called the cushiony scale, which settled on the orange trees and seemed likely to destroy them. “What can be done to save our trees?” was the cry from the people of the southland. What they did was to bring from Australia a different visitor, the dainty bug called the ladybird. She was eagerly welcomed. No one dreamed of bidding her, in the words of the old nursery rhyme, “fly away home.” She was carried to the diseased orchards, where she settled on the scale, and as it was her favorite food, she soon had the trees clean again. In time other pests came to trouble vine and fruit growers, but it is interesting to know that scientists nearly always succeeded in finding some insect enemy of the troublesome visitor, which would help the horticulturist out of his difficulties. In the business of orange-growing, success is due in a large measure to care in the picking, packing, and shipping of the fruit--care even in those little things that seem almost of no consequence. The more particular Californians are to ship only the best fruit in the best condition and properly packed, the higher prices will the fruit bring, the higher reputation the state gain. The lemon industry comes closely second to the orange. This fruit does not need so much heat as does the orange, but neither can it stand so much cold. It needs more water, but it bears more fruit and can be marketed the year round. The lemons not sold as fresh fruit are made to yield such products as citric acid, oil of lemon, from which cooking essences are made, and candied lemon peel. In this latter branch of the trade, however, the citron is more generally used, though it is not of so delicate a flavor. The pomelo, or grape fruit, is fast gaining in favor and increasing in value. To the stranger who visits California the orange is the most interesting of trees. To pick an orange with her own hands, and to pin on her breast a bunch of the fragrant blossoms, is to an Eastern woman one of the most pleasant experiences of her visit to the Golden State. In the history of the growth of southern California, and especially of its orange culture, the use of water on the soil plays a prominent part. It was the discovery that the most sandy and unpromising-looking land became a miracle of fertility when subjected to the irrigating stream, that caused the wonderful prosperity of the dry portions of the state. Irrigation, which means the turning of water from a well, spring, or stream, upon land to promote the growth of plant life, has been used by mankind for thousands of years. In Colorado, Arizona, and New Mexico, there are remains of irrigation canals made by people who lived so long ago that we know nothing of their history.