WHERE THE GOLDEN ORANGE GROWS.

The far-reaching orange groves surrounding Riverside are one of the most

beautiful of all beautiful sights in Southern California, and the

fragrance of the blossoms is subtlest witchery.]

After the fruit has passed the graders and the several sizes are

separated, it goes to the packers, who pick up each orange or lemon and

place a tissue wrapper around it, and press it firmly into the shipping

box until the fruit “stands up high” above the top of the box. The cover

is then nailed on and the box is placed in the freight car which is

waiting at a convenient door. The average car carries 400 boxes of

oranges or lemons.

The fruit is shipped in refrigerator cars, and is usually about eight

days in making the trip from Southern California to the Eastern markets.

The California Fruit Growers’ Exchange ships on an average of sixty-five

per cent of the California production of citrus fruits. This is a

strictly non-profit, co-operative organization of 8,000 growers, the

largest body of agriculturists operating on the non-profit co-operative

plan in the world, and probably the most successful. At least, the cost

to market the citrus crop under this system is lower than the marketing

cost of any other agricultural crop in the world, which accounts in part

for the fact that oranges and lemons are sold throughout the United

States at retail prices which place this fruit within the reach of all.

* * * * *

What Kind of Steel Knives do not Stain nor Rust?

Shortly after the first of the year, in 1916, the U. S. Consul at

Sheffield, England, reported that a new steel had been introduced there

for use in making table cutlery. It was said to be untarnishable and

unstainable even when used with the strongest acid foods, as well as

non-rusting. The new product, which is called “Tirth’s Stainless” steel,

can be thoroughly cleansed by ordinary washing with soap and water, and

cutlery made from it will retain its original polish after use. The

properties claimed for it are of the steel itself and not the result of

any treatment; consequently knives made from the new product can easily

be sharpened in the regular way without fear of resulting damage.

While the initial cost of cutlery made from “Tirth’s Steel” will

probably be about double the usual cost, for not only is the price of

the steel considerably more than that of other steels used for the same

purpose, but it also costs more to work up, it is nevertheless expected

to prove a welcome discovery to restaurant and hotel keepers as well as

other large users of table cutlery because of the immense saving in

labor occasioned by its use.

Why is it Necessary to Keep Unusually Quiet when Fishing?

The experienced fisherman who smiles at the amateur’s restless fidgeting

and complaining has discovered by careful observation that the fish who

swims around in such an exasperating manner just a foot or so away from

the temptingly baited hook has had an advance tip that something out of

the ordinary is going on up above him. For sound, whether it be the

noise of an oarlock or a companion’s casual remark, can be heard more

than four times as easily by the fish in the water beneath than it can

up above in the air. Sound travels very quickly through the air,

traversing ten hundred and ninety feet in a second, but it reaches

forty-seven hundred feet away under water in the same time.

When the crowd on the other side of the baseball grounds yells across

the field it seems as though we have heard their cheers as soon as they

have been given, and so we have for all practical purposes, although in

reality half a second has elapsed while the sound has been coming across

the field. The time taken by sound in traveling is more apparent when

the volume is sufficient to carry it a long distance. The sound of an

explosion of a large quantity of dynamite and ammunition in Jersey City

was not heard in Philadelphia, ninety miles away, for over seven minutes

after it occurred.

[Illustration: CLIFF DWELLINGS, WALPI, ARIZONA]

[Illustration: _Photo by Brown Bros._

The Wonder Book of Knowledge The Marvels of Modern Industry and Invention, the Interesting Stories of Common Things, the Mysterious Processes of Nature Simply Explained · 第 73 / 162 题