This section is from "Scientific American Supplement". Also available from Amazon: Scientific American Reference Book.
Fresno City is the center from which one may drive in three directions and pass through mile after mile of these colonies, all showing signs of the wealth and comfort that raisin making has brought. Only toward the west is the land still undeveloped, but another five years promise to see this great tract, stretching away for twenty miles, also laid out in small vineyards and fruit farms. Fresno is the natural railroad center of the great San Joaquin Valley. It is on the main line of the Southern Pacific and is the most important shipping point between San Francisco and Los Angeles. The new line of the Santa Fe, which has been surveyed from Mojave up through the valley, passes through Fresno. Then there are three local lines that have the place for a terminus, notably the mountain railway, which climbs into the Sierra, and which it is expected will one day connect with the Rio Grande system and give a new transcontinental line. Here are also building round houses and machine shops of the Southern Pacific Company. These, with new factories, packing houses, and other improvements, go far to justify the sanguine expectations of the residents.
There has never been a boom in Fresno, but a high railroad official recently, in speaking of the growth of the city, said: "Fresno in five years will be the second city in California." This prediction he based on the wonderful expansion of its resources in the last decade and the substantial character of all the improvements made. It is a pretty town, with wide, well-paved streets, handsome modern business blocks, and residence avenues that would do credit to any old-settled town of the East. The favorite shade tree is the umbrella tree, which has the graceful, rounded form of the horse chestnut, but with so thick a foliage that its shadow is not dappled with sunlight. Above it is an intensely dark green, while viewed from below it is the most delicate shade of pea green. Rivaling this in popularity is the pepper tree, also an evergreen, and the magnolia, fan palm, eucalyptus, or Australian blue gum, and the poplar. All these trees grow luxuriantly. It has also become the custom in planting a vineyard to put a row of the white Adriatic fig trees around the place, and to mark off ten or twenty acre tracts in the same way. The dark green foliage of the fig is a great relief to the eye when the sun beats down on the sandy soil. Leading out of Fresno are five driveways.
The soil makes a natural macadam, which dries in a few hours. Throughout the year these roads are in good condition for trotting, and nearly every raisin grower is also an expert in horseflesh, and has a team that will do a mile in less than 2:30. The new race course is one of the finest in the State. Toward the west from Fresno has recently been opened a magnificent driveway, which promises in a few years to rival the Magnolia ave. of Riverside. This is called Chateau Fresno ave. It has two driveways separated by fan palms and magnolias, while along the outer borders are the same trees with other choice tropical growths, that will one day make this avenue well worth traveling many miles to see. This is the private enterprise of Mr. Theodore Kearney, who made a fortune in real estate, and it is noteworthy as an illustration of the large way in which the rich Californian goes about any work in which he takes an interest. Probably the finest avenue in Fresno is the poplar-lined main driveway through the Barton vineyard. It is a mile in length, and the trees, fully fifty feet high, stand so thickly together that when in full leaf they form a solid wall of green.
The vineyard, which is a mile square, is also surrounded by a single row of these superb poplars.
A visit to one of the great raisin vineyards near Fresno is a revelation in regard to the system that is necessary in handling large quantities of grapes. The largest raisin vineyard in the State, if not in the world, is that of A.B. Butler. It comprises 640 acres, of which a trifle over 600 acres is planted to the best raisin grapes. Butler was a Texas cowboy, and came to Fresno with very little capital. He secured possession of a section of land, planted it to grapes; he read everything he could buy on raisin making, but found little in the books that was of any value. So he made a trip to Spain, and inspected all the processes in the Malaga district. He gathered many new ideas. One of the most valuable suggestions was in regard to prunings and keeping the vine free from the suckers that sap its vitality. When he returned from this trip and passed through Los Angeles County he saw that the strange disease which was killing many hundred acres of vines was nothing else than the result of faulty prunings - the retention of suckers until they gained such lusty growth that their removal proved fatal to the vine. His vineyard is as free from weeds and grass as a corner of a well kept kitchen garden. The vine leaves have that deep glossy look which betrays perfect health.
When my visit was made the whole crop was on trays spread out in the vineyard. These trays had been piled up in layers of a dozen - what is technically known as boxed - as a shower had fallen the previous night, and Mr. Butler was uncertain whether he would have a crop of the choicest raisins or whether he would have to put his dried grapes in bags, and sell them for one-third of the top price. Fortunately the rain clouds cleared away. The crop was saved and the extreme hot weather that followed made the second crop almost as valuable as the first.
The method of drying and packing the raisin is peculiar and well worth a brief description. When the grape reaches a certain degree of ripeness and develops the requisite amount of saccharine matter a large force is put into the vineyard and the picking begins. The bunches of ripe grapes are placed carefully on wooden trays and are left in the field to cure. The process requires from seven days to three weeks, according to the amount of sunshine. This climate is so entirely free from dew at night that there is no danger of must. The grape cures perfectly in this way and makes a far sweeter raisin than when dried by artificial heat. When the grapes are dried sufficiently the trays are gathered and stacked in piles about as high as a man's waist. Then begins the tedious but necessary process of sorting into the sweat boxes. These boxes are about eight inches deep and hold 125 pounds of grapes. Around the sorter are three sweat boxes for the three grades of grapes. In each box are three layers of manila paper which are used at equal intervals to prevent the stems of the grapes from becoming entangled, thus breaking the fine large bunches when removed. The sorter must be an expert.
 
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