ICI AfoM G^5 THE LIBRARY UNIVERSITY OF WESTERN ONTARIO THE J. D. BARNETT TEXT-BOOK COLLECTION University of Western Ontario LIBRARY LONDON - CANADA Class L.\ VOCiV Digitized by the Intfer^et Arciiive in 2009 witii funding from Ontario Council of University Libraries littp://www.arcliive.org/details/agricultureOOjame PLEASE DO NOT REI\/inVE THIS r CARD FROM BOOK POCKET LIBRARIES THE UNIVERSITY OF WESTERN ONTARIO LONDON CANADA 15-60135 AGRICULTURE BY CHARLES C. JAMES, M.A. DEPUTY MINISTER OF AGRICULTURE FOR ONTARIO Formerly Professor of Chemistry at the Ontario Agricultural College This book may he used as a Text-Book in any High School Of Public School in Ontario if so ordered by a resolution of the Trustees GEORGE N. MORANG Toronto 1898 Entered, according to the Act of the Parliament of Canada, in the year one thousand eight hundred and ninety-eight, by George N. Morang, Toronto, in the office of the Minister of Agi icullure, at Ottawa. 1 '^\ • • • Printed at THE BRYANT PRESS Toronto. Ont. PREFACE. The purpose of ihis book is to aid the reader and student in acquiring a knowledge of the science of agriculture as dis- tinct from the art of agriculture ; that is, a knowledge of the " why," rather than a knowledge of the " how." The science of agriculture may be said to consist of a mingling of chemistry, geology, botany, entomology, physiology, bacteriology, and other sciences, in as far as they have a bearing upon agri- culture. The aim has been to include but the first prin- ciples of these various sciences, and to show their application to the art of agriculture. In a field so wide, and with so limited a space at the author's disposal, tliis work claims to deal only with the simple first principles of agricultural science. It is hoped, however, that the beginning here made will lead to a further study of what is one of the must interesting and most profitable sciences— one that is at the present time making most wonderful advance. From his expeiience of several years teaching at the Ontario Agricultural College the author believes that the rational teaching of agriculture in Public and High Schools is not only possible, but would be exceedingly profitable. An intelligent understanding of the science underlying the art of agriculture will add much interest to what is otherwise hard work, and, as a natural consequence, the pleasure of such work may be IV. PREFACE. greatly increased.. The agriculturists of this country in the future will work at a serious disadvantage if they do not have some knowledge of the very interesting science that underlies their work. The residents of our towns and cities also will find that some knowledge of the science of agriculture may be of use to them, and may increase the respect and consideration for the calling that contributes so largely to the general wealth and welfare of this country. To the many who have offered help and advice and to all who have in any way contributed to this work, sincere thanks are offered. The First Principles of Agriculture, by Dr. James Mills and Prof. Shaw will be found useful for reference, as some of the subjects herein dealt with are enlarged upon in that work. C. C. James. Department of Agriculture, Toronto, August ist, 1898. CONTENTS. Chapter i. —The Seed . II. —The Young Plant III. -The Plant and Water IV. - The Plant and the Soil V. —The Plant and the Air Part I. — The Plant. PAGE I 6 12 i6 20 " VI. — Structure and Growth of the Plant . 24 " VII. — Naming and Classification of Plants . 29 Part II. — The Soil. Chap- viii. — Nature and Origin of the Soil . . 31 " IX. — Tilling and Draining the Soil . . 37 *• X. — Improving the Soil .... 42 Part III. — The Crops of the Field. Chap. xi. — The Grasses ..... 48 " XII. — The Grain Crops or Cereals . . 52 " XIII. — The Leguminous Plants . . -57 " XIV. — Root Crops and Tubers ... 62 " XV. — Various other Crops . . . -67 " XVI. — Weeds . . . . . . 71 " XVII. — Insects of the Field . . . -74 " XVIII. — The Diseases of Plants ... 88 " XIX. — Rotation of Crops • • • • 93 VI. CONTENTS. Part IV. — The Garden, Orchard and Vineyard. PAGE Chap. xx. — The Garden ..... 97 " XXI. — The Apple Orchard . . . 103 " XXII. — Other Orchard Trees . . . 107 " XXIII. — Insects of the Orchard . . .110 " XXIV. — Diseases of the Orchard . . . 116 " XXV. — The Vineyard . . . . .118 Part V. — Live Stock and Dairying. Chap. xxvi. — Horses . . . . . . 122 XXVII.— Cattle . . . . . 127 xxviii. — Sheep . . . . . 133 • 136 139 • 143 147 • 155 . . 158 XXXV. — Digestion and Uses of Foods . . 162 Part A^I. — Other Subjects. Chap.xxxvi. — Bees 171 " xxxvii.— Birds . . . .176 " xxxviii. — Forestry . . . . . 181 " xxxix. — Roads ...... 187 " XL — The Rural Home . . , . 193 Appendix. List of Trees . . . . • . 196 List of Weeds . . . . . . . .198 Spraying Mixtures . , , . , 200 XXIX. —Swine XXX — Poultry XXXI. -Milk .... XXXII. -The Products of Milk VXXIII.- —The Structure of Animals XXXIV. — Foods of Animals *'^ Agriculture is the oldest of the arts and the ?nost recent of the sciences" " Perfect agriculture is the true foundation of trade and industry — // is the foundation of the riches of States." PART L CHAPTER I. THE SEED. The Forming of Seed. — We scatter some oat-grains over the earth and then lightly cover them with the fine surface soil. The spring rain falls, and the air grows warmer. In a few days the green blades of the oat plants appear through the soil all over the field. If we pull up some of these green shoots we find that each one grows from a single seed, and each plant has a bunch of small hairy roots. If we look closely we may find the old husk, or the cover- ing, of the grain that we planted, but nothing more. What was once a seed has now become a plant with roots in the soil and stalk and leaf above the soil. Perhaps we may find some seeds that were buried too deeply and that have not sprouted. On through the summer the oat plants grow, tall and green ; soon the head branches out and blossoms • then the grain forms, first soft, soon becoming harder, and the plants lose their green color and turn brown and yellow. We cut down the plants and later on thresh them out, separating the grain from the straw. The roots or stubble left behind in the soil decay; they will not grow again. The straw also will not grow ; it is fed to the stock or used as litter. But the grain we may feed to the stock or we may use it again for growing another crop of oats next year. We b gan with the seed and the plant has given us seed again, just like the seed with which we started. The seed, then, is the beginning and the end of the oat plant, whose aim in growing appears to be to form seed that will produce other plants like itself. The 2 AGRICULTURE. seed appears to be the most i iiportant part of this plant ; its Hfe passes on through the seed We therefore begin our study of plants with the se ed. Many other plants of the field, like the oat, sprout, grow, form seed and die in one season (Annuals). Some otheis, suchasciriots and turnips, do not ioim seed unless left in the ground for a second season (Biennials). Then their roots and stalks die. There are others, such as fruit trees, nut- bearing trees, grape vines, tliat form seed year by year, but still keep on li\'ing (Perennials). Make a list of the plants of the farm and garden under these three classes : Annuals, Biennials and Perennials. Shape and Size of Seeds. — The seeds of the same kind of plants are very much alike in shape and size, but the seeds of oats, wheat, barley, corn, peas, beans, turnips, pumpkins, apples, red clover, and timothy all differ. So do the seeds of the grasses and of the weeds. Some are ball-shaped like peas, some are long and pointed like oats, some are flat like pump- kins, some are three-sided like buckwheat and beech nuts. And there are many other forms ; in fact, there is a different form for every different kind of seed. One seed may send up two or more stalks, but one stalk never grows from more than one feed. Find out how many grains of wheat there are on a single slalk ; how many seeds there are on a dandelion head, and how many grains of corn will be grown from one seed of corn. Get a number of small glass bottles about two inches long. Collect the seeds of grains, of grasses, and of weeds. In the summer and fall gather these seeds from the growing plants, in the winter get them from the bins. Put these separately in the bottles, write the name of each kind on a piece of paper and fasten it on the bottle. You can in time get a collection of all the principal seeds that are to be found growing in your locality, and you can then study them. After a while you can wrile on each its botani- cal name also. The Structure of the Seed. — Wheat and oats are too small for us to take apart easily. Let us take a large seed such as a hickory nut. First the rough outer husk is taken off, then we THE SEED. come to the hard shell. If we crack this carefully we can take out " the meat " in one piece. We see that it is made up of two parts joined together at one end. Notice at which end of the shell the two parts are joined together. Now take another nut — an almond. We crack it ; the meat comes out in one compact piece. We place this in water for a couple of minutes and then we carefully rub off the coating. We find that the white almond will separate into two parts that are joined together at one end, very much as in the hickory nut. We find also that there is a tiny tip between these two parts. The nut appears to be made up of two thick leaves joined to a very short stem. It is somewhat like a plant with a short stalk, having two big leaves, but no roots. —An Almond showing parts just separating; also half of same showing tip that will grow downward into root and upward into stem. Fig. 2. — An Acorn cut in two. Fig. 3. — A Horse-Chestnut cut in two showing seed leaves and tip. Fig 4. — An Fig. 5. — A Apple- Pumpkin- Seed. Seed. We can examine the seeds of the acorn, the horse-chestnut, the apple, the pea, the bean, and the pumpkin, and we find them all made up or put together in much the same form. If we open up other seeds, however, we may find some that have only one seed-leaf, and some that have more than two. What do you find in the maple tree seed ? The Sprouting of the Seed. — When a seed begins to grow, it is said to sprout. Seeds do not begin to grow in the ground in winter, nor will they sprout in summer if they are 4 AGRICULTURE. buried too deeply in the soil. We can easily cause seeds to sprout, and we can, at the same time, find out just when they will sprout. It we place some wheat grains in a dry dish and keep them dry, they will not sprout either in winter or sum- mer— it makes no difference whether they are cold or Avarm, they will not sprout so long as they are kept dry. We there- fore conclude that seeds require water or moisture in order to sprout. If this were not so we would have the grain sprouting in the bins and granaries. At the same time we notice how important it is to have all bins and granaries quite dry. Now let us take three deep dishes, such as soup plates. We get three pieces of flannel and cut them so that when once folded each piece will just about cover the bottom of the dish. AVe place about twenty grains of wheat in each between the folded flannel. We then moisten one plate and set it away in a cool place, and we keep the flannel moist all the time ; we moisten the second and set it in a warm place, in a sunny window, for instance, and we keep it moist ; we fill up the third and set it also beside it in the warm place, and we keep the plate y?//(?^ with water. We can see what changes take place from day to day by lifting up the flannel. The grain kept cool does not sprout ; the grain kept covered with water so that the air does not reach it does not sprout, even though it is warm ; but the grain that is kept warm, that gets some air, and that has a little moisture soon sprouts and starts to grow. We now conclude that for seeds to sprout they must have -water, heat and air, and if any one of these three be lacking, sprouting will not take place. By means of warm, moistened cloths we can tell whether the seed grain that we desire to sow is likely to sprout or not in the ground, and about how much is likely to grow. This is important, as seeds when they are old lose the power of sprout- ing. Some seeds lose their vitality or power of sprouting much sooner than others. Can you find out which these are ? THE SEED. 5 Conclusions : — 1. Seeds will not sprout unless they get some water or moisture. 2. Seeds will not sprout when the ground is too cold. 3. Seeds will not sprout when they are in undrained soil that is full of water, because they cannot get air. 4. Seeds will not sprout when they are buried too deeply so that the air cannot reach them. The seed is the beginning of the plant, and with the plant, as with so many other things, it is of very great importance to have a good start. This means that we should have good liv- ing seed — seed that will grow, free from weed seeds. Then we must have a good, fine, level seed-bed, on a well-drained field, so that the seed can be sown evenly and covered properly. Moderate rains and bright sunshine will cause the seed to sprout, and the young plants will soon appear at the same time in all parts of the surface of the field. This brings us to the study of the young plant, which will form the next chapter. Describe the seeds of corn or maize, buckwhrat, the turnip, the thistle, the dandehon, the strawberry, the gooseberry, the pumpkin, the grape, the cherry, the apple, the maplj, the elm, the basswood, the beech, the hickory. What is the effect of steeping seed just before it is sown? What kind of water should be used — hot, warm, or cold ? AGRICULTURE. CHAPTER II. Fig. 6 — A Bean showing tip of rootlet or radicle at r; also with parts separ- ated showing tip just starting to grow. THE YOUNG PLANT. We have learned that seeds will sprout when they have water, heat, and air. But there must not be too much water, for then they will simply become soft and decay ; nor must there be too much heat, for then they will be dried up and killed. We have shown how they can be sprouted between layers of moist flannel or blotting paper. When sprouted in that way their growth can be watched day by day ; but this plan of sprouting seeds will not allow us to watch their growth to a very large size. If we wish to see them grow up into full- sized plants we must plant the seeds in soil. We can do so in a box of clean garden soil placed in a sunny window, or out of doors in warm weather. We may plant some peas, beans, or pumpkin seeds. Let us take a handful of bean seeds. As they are rather large in size we must cover them thoroughly with soil about an inch deep. At the same time we might put in a few seeds four, five or six inches deep, and also place three or four right on the surface, to observe the effect on them in contrast wnth those planted at the proper depth. We then water the soil slightly every day. Alter two days we carefully take up a couple of seeds to see what has taken place. Then we put them back carefully. In this way, day by day, we examine carefully a couple of the seeds until we find them starting to sprout. THE YOUNG PLANT. When they have once sprouted we can take up a plant every day to see what change is taking place. We should have enough plants growing so that we can throw away each little plant after we have examined it. First we find the seeds becoming moist from the water in the soil, and Fig. 8. — Seed.Pea and young pea plant. Fig. 7. - fcSean Seed ; also young plant on right, and, in the centre, a plant showing two seed leaves, also first pair of true leaves above. soon turning soft. The beans swell a little and soon break open the outer covering or husk. The two thick leaves of the seed separate a little and a few fine roots push out into the soil. The little tip between the seed leaves begins to grow larger and pushes up towards the air. The plant never makes a mistake ; the roots always grow out and down into the soil and the little tip AGRICULTURE. that forms the stalk ahvays grows up into the air, whether the seed is lying upside down or not. The roots lengthen out and branch into a little bunch of fine fibres, and the stalk soon brings the two leaves above ground. Sometimes we can see the old husk of the seed still clinging to one of the seed leaves, which are generally quite smooth and simple in form. The stalk grows on higher and higher ; new leaves form ; little branches are thrown out ; leaves form on these ; and now we see the general form or make-up of the plant. By this time we observe that the two seed leaves have become thin and soon disappear. They appear to be of use only in the first few days of the sprouting of the seed and the early growth of the young plant. What is their use ? They are different in shape and size from the ordinary leaves of the plant. They are thick at first, and soon become thin and disappear. They are nothing else than little sacks of food stored up in the seed to feed the young plant until it forms roots and leaves and is able to get food for itself from the soil and the air. Parts of the Plant. — The roots spread out or go down through the soil ; the stalk grows up and branches out ; the ^ni leaves grow along the side and at the ends of the branches. These three parts — roots, stalk and branches, and leaves — are quite different in form and in color, and we may conclude that they also have different work to do in the life of the plant. We can easily study these three parts in larger plants. In the case of a carrot the root is thick and long and pushes itself straight down into the soil. We call such a root a tap root. But along this root we find a large number of fine, hairy-like rootlets, to which the fine particles of soil cling closely. These are the feeders of the big root. In the case of a stool of ,wheat or oats we have THE YOUNG PLANT. a mass of fine roots. We call such a root fibrous. In the case of large trees, we find large roots running off in all directions, many of them for long distances. If we take up a piece of tree root, we find the outer end covered with fresh, fine, hairy-like roots. These are the feeders of the big roots. How do roots grow ? A man's arm is longer and larger than a boy's arm. How did it grow? Not simply by adding on at Fig. lo.-Fibrous root, o y J J o as of grass. the end, for in that case the man's arm would he merely the boy's arm with very long fingers. All parts of the arm must have grown at the same time. A root would find it very difficult to grow in that way through the soil. It adds on at the end or the tip. Sometimes a root has to go around a large stone ; a bend is formed in the root. How difficult it would be for the root if it had to keep pulling itself around that stone as it grew longer. Roots, of course, grow larger and thicker, pushing aside the soil and even rocks ; but they lengthen at the tips and take in the food from the soil through the fine, hairy rootlets, which are always found in largest numbers near the ends of the newly- formed roots. Two other things we notice, namely, the roots do not bear leaves and they are not green. They are generally light colored inside with a dark covering. They are also quite pliable — easily bent or twisted ; in fact they are made for working their way easily through the soil and around stones. Pull up a bunch of grass and observe how the roots cling to the fine soil. Also observe how crooked a tree root grows. Fig. II. End of Root, cov- ered with fine, hairy, feeding ro tlets. is the matured or ripened spike- let with seed inside; K is the seed. When a grass plant grows tall and produces seed or grain large enough to use as food, we allow it to ripen its seed. We use the seed as grain and the leaf and stem we call straw. When a grass plant grows tall, but produces very small seed, we generally cut it down before it produces seed. We then call this hay. Such grasses are timothy, red-top, orchard grass, the fescues, the foxtails, brome grass, and rye grass. 50 AGRICULTURE. When a grass plant does not grow tall, but grows short and thick, we use such plants for pasture grasses. Such grasses are June grass and Canadian blue grass. Fig. 21. — Kentucky blue grass or June grass. A pasture and lawn grass. The best way to study the different grasses is to study them as they are growing ; you will then find out how many there are and how different they are in form of leaf and head, in color, and in their habits of growing. Blo-Ssoming of Grasses. — There is one other point to study in grasses, and that is their blossoming. The blossoming of the corn plant will be referred to in the next chapter. The blossoms of wheat and oats are much like those of timothy, shown in fig. 20. The grass blossoms, generally, are very small and are not very bright in color, we are therefore likely to overlook them ; but every grass plant blossoms before it forms seed. If we allow the timothy to stand too long before THE GRASSES. 51 cutting we notice that the hay is " dusty " ; this is caused by the pollen from the blossoms on the head. Notice, also, that all the blossoms on the timothy head do not come out at the Fig. 22. — Couch grass showing how some grasses reproduce by creeping roots I, new plant just coming up; 2, plant before blossoming; 3, old plant forming seed. June grass also spreads in the same way. same time. Some are a little later than others. Because of this we sometimes hear it said that it blossoms twice, but this is not the case. Grasses for hay are generally cut just before blossoming, or just as the blossoms begin to appear. Clover and buckwheat are not true grasses. Why not ? Why are foxtail and red-top so called ? Which grasses have branched tops and which spikes ? What is meant by " seeding-down "? When is this done. Why does not the grass outgrow the grain ? Explain why grasses, such as June grass, are so common. Why do not wheat and corn spread ? 52 AGRICULTURE. CHAPTER XII, THE GRAIN CROPS OR CEREALS. The principal grain crops of the farm are wheat, oats, barley, rye, corn, buckwheat, and millet, and to these we shall briefly refer. It must be remembered that these crops also may be, and frequently are, cut green and fed to stock before the grain is formed, especially rye, corn and millet. Other crops also are used for soiling, such as clover, peas, and tares or vetches. While the plant is growing it takes in food from the air and the soil. It keeps on increasing in size until in full bloom. Then the seed begins to form from the blossom, and all the material that goes to form the seed is taken up out of the leaf, stem, and root, where it has been stored up. During all this time of seed-forming, very little plant food comes in through the root, so that when the seed is fully formed, the leaves and stalk and root are not so rich or nutritious as they were at the time of blossoming. From this you will see why it is that straw is not so rich a food as hay. Wheat. — Wheat is sometimes classed according to its color, red and white ; sometimes according to its husk, hard and soft; sometimes according to its chaff, beaided and bald; sometimes according to the time it is sown, fall or winter, and spring. We use these four methods in describing any variety of wheat. Where the first wheat came from we do not know ; but wheat taken from one climate to another and from one kind of soil to another will change in size, form, and general appearance, so that we need not expect to find the same variety of wheat always appearing exactly as described. THE GRAIN CROPS OR CEREALS. 53 This we should remember, that wheat, like every other kind of grain, must be carefully selected if we wish to keep it improved. We can even change a winter variety to a spring by sowing gradually earlier year by year; and we can change a spring variety to a fall variety by sowing gradually later year by year, (iet a head of bearded wheat ; take it to pieces, and observe the long beards, what they are and how attached. Compare with the beards of a barley head. .\re the beards on the grain ? The grain of wheat is made up of several parts, the three principal parts being — first the outer husk or the bran coatings, second the white flour portion, and third the little bluish germ at one end. This germ is the living part of the grain, the flour is the food stored up for feeding it in its early growth, and the bran is the covering or cloak. If we grind up the whole grain we get whole-wheat flour. By the old stone milling pro- cess the bran alone was separated from the rest. By the new process the grain is divided mainly into three parts, namely the bran, the white flour, and the bluish or greyish germ flour. Place several grains of wheat in your mouth and chew them. Gradually you separate and swallow part of the wheat — that is the starch ; you will have left in your mouth a gummy sub- stance— that is the gluten. The gluten is the richest part of the flour ; it is what gives it its strength. Rye. — In some countries of Europe rye takes the same place that wheat does in America, it is the great flour-produc- ing crop. As with wheat it is sown both in the fall and in the spring. It is very hardy and can be grown even on very poor soils. With us it is sometimes sown in the fall to be cut early in the summer as a soiling crop. The grain is longer than that of wheat and its flour is quite dark. Oats. — The oat plant furnishes a most important food for man as well as for horses and other animals. Oats are generally classed according to their color. The head is branched and the grains are covered with a coarse loose husk, hence its light weight. 54 AGRICULTURE. This grain will grow in poorer soil than wheat and much further north. It is a rather hearty and gross feeder and produces very large crops on rich soil. Barley. — This grain is classed as two-rowed, four-rowed and six-rowed, according to the number of rows of kernels in the head. The two-rowed requires a longer season of growth than the six-rowed, which is one of the most rapidly growing and maturing grains that we have. Barley is used as a food for stock, and also for the making of malt out of which beer is brewed. Its value for malting depends upon the soil and climate. It must be of bright color, well filled, and all ripened so that it will sprout evenly in malting. Corn or Maize. — In Great Britain the name corn is applied to either wheat or any bread-producing cereal, in North America it means Indian corn or Maize. The distinction is made of sweet corn which is used for food by man, and common corn, which again is divided into flint and dent. Flint corn has a hard flinty kernel, and dent has the indented form on the tip of the grain. The roots are long and therefore the plant feeds quite deeply and requires a soil of deep cultivation. It has long heavy leaves and thick stalks, not hollow like the previous grains, but more or less filled. It bears heavy ears and pro- duces large quantities of food per acre. We at once conclude that it takes much more food from the soil than the others, that it is a heavy feeder and requires heavy manuring. When well cultivated, it is a good cleaning crop. The blossoming of the corn is worth noticing. Fine silky threads may be seen hanging from the end of the green ear, all attached to the cob — these are the "styles," the female portion of the blossom. At the top of the stalk is " the tassel " which carries the stamens or male portion of the blossom. The pollen from these falls down upon the pistils of the ear and there completes the blossoming. If different varieties of corn are planted near together the pollen from the tassels of one variety THE GRAIN CROPS OR CEREALS. 55 may be carried by the wind or by insects to the silky pistils of another, and thus produce the peculiar kernels that are some- times seen on ears of com. In growing corn for seed, there- fore, it is necessary to grow each kind by itself, far from any other variety. There are various ways of growing corn. It may be sown broadcast, when the plants grow close together and cover the entire soil. In this case the plants do not have sunlight upon the lower leaves and the stalks, and as a result the plants do not mature, and production of ears is prevented. The crop consists entirely of leaf and stalk, and is cut and used just as we cut and use timothy hay. The effect of the lack of sun- light is seen also in the pale yellow color of the under leaves, rphe stalks and the leaves are quite watery, and the amount of food per acre is less than is got by the other methods. If ears are desired the corn must be sown in rows or in hills far apart; the taller the corn the farther apart must be the drills or hills. A method adopted by many western corn-raisers is that known as "listing." The corn is grown in furrows, which are gradually filled in as the corn grows higher. Just above the surface of the soil a ring of suckers shoots out from near the joint or node, and as the earth comes up to them these take root. In this way the corn becomes deep rooted, is held firmly in place and is able to withstand drouth. A great deal of valuable information can be learned by care- fully watching the growth of different kinds of corn in the field. From what part of the stalk do the ears grow ? What is the effect of cutting off part of the tassels ? What is the effect of cutting off all the tassels ? What is the effect of re- moving the smaller ears and leaving only the larger ? What is the effect of cutting away all the corn for about eight feet on every side of a single hill or stand ? Sugar Cane. — This plant, like corn, has a stalk whose tubes are filled with a juice rich in sugar. New plants are started 56 AGRICULTURE. from " cuttings." Its stalks grow from one to two inches thick and from eight to twenty feet high. It is cut before flowering and the juice pressed out. This juice is evaporated and a dark brown sugar remains, from which the white sugar is got by " refining." Sorghum. — This has pithy stalks like maize and sugar cane. There are several varieties of it, one, Indian Millet or doorha, is grown extensively in Eastern countries for its grain for bread making ; another is grown for its sugar or syrup, also as food for stock ; and still another (broom corn) for its tassels, out of which the whisks of brooms are made. The broom-corn tops are cut off while still slightly green and are dried in dark buildings, where they partially bleach out. These three members of the grass family, maize, sugar cane and sorghum, are then distinguished from the other grasses, in having their stalks filled, and all contain a considerable quantity of sugar in their juices. Sugar cane grows only in very warm climates, sorghum is found farther north, and maize, although originating in Mexico or Central America, will, in some of its varieties, mature its grains much farther north. Rice. — This is the great bread food of China and Japan, and is best grown in lands that are mild in climate and are capable of irrigation. The land is prepared as for grain. The rice is sown in drills and covered with about two inches of soil. Then the water is let on to a depth of 1 2 to 18 inches. After standing for f )ur to six days it is drawn off and the plants allowed to get a good start ; water is again let in for a time and then drawn off before harvesting. The growing of rice upon wet soils gives us the explanation for the scriptural teaching : " Cast thy bread upon the waters, for thou shalt find it after many days." (Ecck xi. i.) THE LEGUMINOUS PLANTS. 57 CHAPTER XIII. THE LEGUMINOUS PLANTS. Nature of Legumes. — Plants such as wheat and barley were formerly cut with a sickle ; the pods of such as peas and beans were gathered by hand ; hence the latter were known as legumes, from the Latin lego, "I gather." All plants resembling peas and beans in their botanical nature were called the legum- inous plants. They were also called pulse because, as some say, of their being pulled or plucked. The most striking resemblance is in the blossom. The seeds are formed in pods Fig. 23. — Blossom of a legume as of pea, bean, or flowering locust tree. Fig. 24. — Blossom of legume taken apart, showing five leaves of corolla. Upper large leaf is the " standard," the two lower the "keel," the two side the "wings." The pistils and stamens are enclosed in the keel leaves. or legumes of different shapes in different plants. In some of the members of the leguminous family, the blossoms and pods are too small for us to observe readily their resemblance to those of the pea and bean ; but a careful study of the roots, leaves, and blossoms of the following plants will soon prove that they are all quite alike. They are all legumes with which we should be familiar. 58 AGRICULTURE. Leguminous Family {Leguminosd). Common pea. Common red clover, Common string bean, White or Dutch clover, Lima bean, Alsike or Swedish clover. Horse or Windsor bean. Crimson or scarlet clover, Common vetch or tare. Mammoth red clover. Common lentil. Lucerne or alfalfa, Lupines, Peanut or ground nut. From this list of plants we see that the family is large and important. In addition there are many weeds belonging to this same family. To speak of clovers as being grasses is bot- anically incorrect, since in form or shape and in mode of growth they are entirely different. The most notice- able difference is in the shape of blossoms. The leaves also are different in shape and in arrangement. Contrast a plant of clover with a plant of timothy or wheat. The stalks also are different, and the roots are quite different. Pull up a large red clover or pea plant, and also a wheat plant, and contrast their roots. Which is the more fibrous and matted? The clovers send their roots deeper into the soil. Observe, also, the little knots, or balls, or tubercles on the clover roots. These tubercles play a very important part in the nourishment of the leguminous plants. They are filled with many little living parasites, something like yeast cells, that grow and feed upon the free nitrogen of the air, from it forming compounds that help to nourish the plants. Now we have already mentioned Fig. as- — Root of a legume showing knots or nodules or tubercles. THE LEGUMINOUS PLANTS. 59 that wheat, for instance, will readily feed upon nitrogen in the form of nitrates ; but if we apply nitrates to clover no effect is produced. The wheat cannot take up the free nitrogen of the air, but the clover can, through these root tubercles. Sometimes clover does not grow well ; and when pulled up very few, if any, of these little tubercles are found upon the roots. If, however, some soil in which clover has been growing well, or the washing from such soil, is applied to the weak clover, the plants soon begin to thrive and the tubercles are seen growing upon the roots. These tubercles possess the power of taking up free nitrogen from the air in the soil. If we can get leguminous plants to grow in a poor soil and then turn them under, they will decay and produce humus rich in nitrogen that will give rise to nitrates (by nitrification) for the benefit of the wheat or other grain crop that comes after. The seeds from all leguminous plants are very rich. Then we can state the following as the valuable points in connection with leguminous plants : — 1. They have many leaves and are good for fodder. 2. Their seeds are very rich in food material. 3. Their roots are generally long, therefore deep feeders. 4. They take up free nitrogen from the air, and are therefore easier on the soil than are cereals or root crops. Peas are generally grown for the seed, which is very rich in nitrogen and in oil. The many varieties grown for man and stock are classed as garden peas and field peas. The straw is richer than that of the grain crops. When grown to be cut green for soiling, peas are generally sown with oats. Beans are grown in this country for the seed, planted in hills, as a garden crop, or as a field crop with good garden cultivation. Some of the varieties, as the horse bean, require a fairly mild climate. Some are short and bushy, others are tall climbers. Examine their means of climbing. 6o AGRICULTURE. Vetches or Tares have smaller pods and seeds than peas, and are grown for soiling along with oats. The stiff stalks of the oats help to support the slender vines of the tares. Common Red Clover is also known as broad leaf clover or trefoil. The peculiar light spot on the leaves and the closeness of the upper leaves to the head are to be noted. It grows to two feet in height, and the roots penetrate the soil deeply While in some localities it is a perennial, in most temperate regions it is a biennial. Its form and mode of growth adapt it for hay rather than for pasture. It ripens about the same time as orchard grass and about two weeks earlier than timothy. It should be cut before the heads become very brown ; if left too late its leaves, which form a large part of it, become brittle and drop off in handling. After being cut once the plants rapidly grow up again, giving a second crop, the aftermath or rowen. The depth to which its roots go depends greatly upon the state of the soil ; therefore the soil should be well drained. When the sod is turned over, large quantities of humus, rich in nitrogen, are left near the surface for the wheat or other grain crop following. A variety of red clover is known as mammoth clover. White or Dutch Clover is a low growing plant, with creeping stems and white blossoms It is very hardy and apt to crowd or smother out other plants. It is one of the most frequent plants in pasture fields, and is especially valuable for sheep and cattle. It is usually sown with grass seeds in permanent pasture mixtures. Alsike or Swedish Clover is a perennial with pink blossoms, growing about two feet high. It thrives in cool climates. It does not give such heavy yields as red clover, but is specially adapted for hay fields that are to be kept for several years. It is sometimes sown along with other seeds for pastures. THE LEGUMINOUS PLANTS. 6l Crimson or Scarlet Clover grows further south than the others, has a long scarlet head and makes an early rapid growth even on poor land. It is a hay plant. In some places it is used as a "catch crop," that is it is grown on land after the remo\-al of grain crops, for a light forage crop or to be plowed under as a green manure. Lupines include a number of little shrubby plants that bear very showy flowers. The plants are apt to be too woody for forage, but sheep readily eat them. Their principal use in this country is for plowing under as green manure, since being leguminous they gather nitrogen from the air. The most common are white, yellow, and blue lupines. There are some troublesome weeds among native lupines. Lucerne or Alfalfa is a plant resembling clover in its growth. It is not strictly a clover, although sometimes called Spanish clover. It is ditificult to start upon land, but once well started it is long continued, being a deep-rooted perennial. It has a smaller leaf than clover and a purple head, more open. It is somewhat bushy and sends its roots as deep into the soil as the water level will allow. For this reason it resists drouth. It must be cut early or it will produce a very coarse woody hay. In mild climates it may be cut for hay several tunes during the year. The Peanut is an annual, growing in warm climates on light soil. Other names for the plant are earth-nut, ground-nut, goober. Though not a nut its pod is somewhat like a nut and it belongs to the pea family. The seeds are very oily, giving an oil used for soap making. 62 AGRICULTURE. CHAPTER XIV. ROOT CROPS AND TUBERS. Nature and Growth of Roots. — If we place some seed of the turnip or beet in the ground in early summer, we find a plant sprouting up that has broad thick leaves. The root is tapering, sometimes quite long, and has fine rootlets growing on the sides. Towards the end of the season the leaves wither, change color, and die. When we pull up the root we find a thick mass of juicy substance that is relished much by animals. This turnip or beet root has not finished its life- work as a plant, since it has not yet produced any seed or any new plants like itself. If we leave it in the ground, or if we take good care of it through the winter so as to keep it cool and unbruised, and plant it in the early summer, it will begin to grow again. A new growth will appear above the soil, a stalk will be formed and seed be produced of the same kind as that which we sowed in the first place. If we again pull up the plant, we find the thick fleshy root has become very thin and fibrous, and is of no use as food for stock. We conclude that these plants are biennials ; that during the first season they store up large quantities of food in their root, and that this food in the root nourishes the plant during the second season. Since they have a whole season to gather food, we find that the weight per acre greatly exceeds that of many crops that are annuals, and they take a large quantity of material out of the soil. These plants are heavy feeders. By keeping the soil well cultivated we destroy the weeds, keep the soil moist, and help the action of the roots. The roots are very watery and contain large quantities of the substances that are kOOT CkOPS ANI) TUBERii. H first formed in plants, namely sugar and starch. The materials that are taken from the soil through the roots, and that which passes in from the air, are worked over in the green leaves, so that while green we would expect to find a considerable quan- tity of mineral or soil material in the leaves. Any green leaves that are cut from the roots when they are pulled, therefore, should be left on the soil where the roots grew, so as to help keep up the richness of the soil. The roots keep on growing during the fall until the weather becomes very cold, therefore they have a good chance to benefit by the nitrates that are formed during the latter part of summer. They have the advantage of spring-sown grain crops in this regard. Since root crops are such heavy feeders, and since the ground should be kept thoroughly cultivat- ed during their growth, they are generally used as the crop to which the largest quantity of barn- yard manure is applied. In addition to heavy manuring, another very important necessity is thorough cultivation of the soil before the sowing of the seed. The root is thick and compact ; it has to push down and out on all sides. If it can- not go straight down it will twist about or push itself partly out of the ground. For well shapen and perfect roots, then, we must have a well-tilled and well-drained soil. Fig 26. — Sugar beet on left grown good soil, well drained and well cultivated; beet on right grown in rough soil. 64 AGRICULTURE. The Turnip belongs to ■what is known as the mustard family {Crucijerce). The principal members of this family are the turnip, the radish, the cabbage, rape, cultivated mustard, horseradish ; the weeds, wild mustard or charlock, shepherd's purse, and wild flax ; the flowers, stocks and candy tuft. The flowers of all these plants have 4 petals spread out in the shape of a cross — hence the name, crucifem. The Carrot is a plant whose varieties differ gieatly in shape, size, and color. Celery and the parsnip belong to the same family. The blossom resembles the stays of an um- brella ; hence the name — unibcUiferoi — applied to this family. The shape of the root, differing from that of the turnip, suggests that the plant goes deep and therefore requires a soil loose and open and deeply cultivated. The Beet belongs to still another family, the goose- foot family. The original of this root was a wild plant of Southern Europe. Gradually it has been improved, the root has been enlarged and the composition changed, until now we have several very valuable plants whose roots are widely used. The mangel-wurzel or mangel is one variety, grown for stock feed- ing. The sugar beet is another, grown for its sugar. Mangels when grown on rich, well-cultivated soils produce enormous yields per acre. They may be kept stored for late feeding. The sugar beet is a good example of what can be done by way of improving plants. In its wild state the beet had very little sugar that could be extracted. By cultivation it was found that the quantity of sugar increased. Suppose we take a field of common white beets and select the most perfectly shaped roots of about i y^ or 2 pounds each, and plant them and then select the best seed from these and sow this seed. We pick out the best beets from that crop. Then by testing small pieces of the roots we find out which have the largest amount of sugar, and plant them. We keep on in this way for several years ; we find that at last we get seed that will produce beets ROOT CROPS AND TUBERS. 65 that are clear-skinned, nicely tapering, having a large amount of sugar and a small amount of ash material. We could thus develop beets good for sugar making, whose nature it is to produce sugar. In this way the sugar beets have been developed, and in this way the seedsmen are still producing improved seed. To grow good sugar beets the soil must be •well-drained and well-tilled, the plants must be grown closer together than when grown for feeding stock, and the roots must be kept well covered, since the sugar is stored in the part under the soil. Any green collar on the beets will, like the green leaf, have too much mineral matter. The beets are taken to the factory, cleaned, pulped fine, the juice extracted, and the sugar obtained from it by evaporation. Sugar, like butter, is made up from carbon, hydrogen, and oxygen, which come from the air and the rain ; so that if the leaves are left in the soil, and the pulp taken back and fed on the farm there is little or nothing lost from the soil. The Potato is here included among the roots, and yet we all know it is quite different in form and growth from the beet and the carrot. We do not sow seeds, but potatoes or parts of potatoes ; the method of growth under ground is peculiar ; and the branching tops and blossoms are quite different from those of the roots. If we examine a potato tuber we find upon it many eyes or buds. If we place the potato in a warm damp room these buds grow out into green stems. We can even cut it into many pieces and still the eyes will send out stems. We do not cut up roots for planting ; we sow their seed. If we pull up a hill of young potatoes we find what appear to be two sets of roots, one having little balls upon them, the other none. Trace those that carry the little potatoes back to the stem and you find that they are really branches of the stem, whereas the others are the true roots. Then we conclude that the potatoes grow on under- ground stems, that they are really swellings of the stem and the 66 AGRICULTURE. eyes are buds ; so that what we plant are cut- tings of the underground stems of the plants. Observe the arrange- ment of the eyes in the potato. Rightly, then-, we speak of the potatoes as being tubers not roots. Jerusalem artichokes also are tubers. If you cut open a potato you find it filled with a starchy substance generally white in color. Fig. 27.— Potato plant, showing B the true roots ; If yOU CUt Up fine a SUgar C, the underground stems; A, the tubers, which l . ^1 ' t- ' are swollen or enlarged parts of the stems. The t)eet and plaCC it Ul a eyes in the potato tubers, therefore, are buds. ^ 1 coarse towel you can wring the juice out of it quite easily, you cannot easily do so with potatoes. You conclude that potatoes have less water and more dry matter or food in them than have the roots. If you evaporate the juice from potatoes you find little or no sugar. Then we conclude that roots have large quantities of sugar and water in their make-up, but potatoes have less water and quite a large amount of starch. The potato, the tomato, and tobacco belong to the family known as Solanacetz. The sweet potato is the root of a plant grown in very warm climates, and belongs to the family Con- vo/vulacece, as do the morning glory and dodder. New varieties of potatoes may be got by sowing the seed and selecting the best tubers so grown, planting these and selecting the best grown from them, and so continuing. VARIOU.^ OTHER CROK'5. 67 CHAPTER XV. VARIOUS OTHER CROPS. Buckwheat produces seeds or grains which resemble in shape small beech-nuts, hence the name beech-wheat or buck- wheat. The second part of the word would suggest that it is a kind of wheat or a member of the grass family. This is not the case, as the leaves and flowers prove. It belongs to the family known as t\\Q polygonacecr, to which also belong rhubarb, the docks or sorrels, and knot grass. Its roots are quite short and it feeds largely on the air. It will grow even on very poor soils, where it is sometimes plowed under as green manure. Its peculiar blossom is noticeal)le in its color and odor, and is much sought by bees for its nectar. The grain is used for flour and also for feeding in moderate quantities to stock. Buck- wheat flour is not so rich in nitrogen as that of wheat, and the straw has more fibre than the straw of the graminece or true grasses. The Sunflower is an annual, growing very high on tough stalks with a large showy head filled with seeds. These seeds are rich in oil and nitrogen compounds. The oil forms nearly one-fifth of the dried seed, and is extracted for various uses. The seeds are used also for feeding stock. Why is the plant called the sunflower ? The sunflower is a fine example of the large family known as the compositce, which have many flowers in a single head. The thistle, ragweed, goldenrod, aster, daisy, yarrow, chrysanthemum, marigold, salsify, dandelion, lettuce, and sunflower are all members of this family. Compare the heads of any of these before and after seed formation. 68 AGRICULTURE. Rape has already been referred to as being closely related to the turnip and cabbage. Its leaf resembles that of the turnip, but its root is much smaller and its top much larger. It grows to a height of from one to three feet. Some varieties are annuals and some are biennials. It is grown both for its seed, which contains a large quantity of valuable oil — rapeseed oil — and also for its tops, which are used in pasturing and in soiling. When used for soiling or pasturing, the biennial is sown in drills and cultivated. Flax is an annual with slender stems about two feet in length and bearing bluish flowers. The seed is known as flaxseed or linseed. The word linseed is from the botanical name linuni, which is also found in linen, the cloth made from the flax fibre. It is grown both for its seeds and for its fibre. The seeds contain a very large amount of oil (linseed oil), which is very valuable for paints and other purposes ; also a large amount of nitrogenous compounds, and of ash material. When the oil is removed the bye-product forms one of the richest foods used for stock-feeding. When the plant is grown for fibre it may be pulled at any time after blossoming. The fibre is obtained from the stalks. We have before referred to the cell-structure of plants. When we cut across a piece of wood we cut across its cell tubes ; w^hen we cut lengthwise along the wood we cut these tubes from one another. The grain, as we say, runs along the stem or limb. In some plants these cells are strung together in threads and are very tough so that they will hold together. The cells in the bark or bast are generally longer and tougher than those in the wood, and are known as bast cells or bast fibres. The inner bark of bass wood (or bast-wood) is quite tough because of these. These bast cells in the flax are very fine and very tough, and, there- fore, make fine fibre. The best fibre is got from flax that has not ripened its seed-vessels or bolls. Why ? Generally, how- ever, the plant is allowed to ripen its seeds. The plants are VARIOUS OTHER CROPS. 69 pulled by hand, dried, and tied in bundles. The seed is separated by what i8 known as " rippling " or combing out. Then the straw is partly rotted, either on the grass or by steeping in vats of water. This process rots the coarse woody part of the stem, and separates the fine fibre from it. It is then dried and "scutched," either by hand or by machine. This process of scutching simply rubs or beats away the loose woody parts from the long fibres. The fibre is now ready for use, to be made into twine or thread or linen cloth. To grow good crops of flax, rich, clean, well-drained, well-cultivated soil is needed. It requires a moist climate, moderately warm. The plant is very rich in nitrogen, potash, and phosphoric acid, and therefore we may conclude that it takes a good deal of nourish- ment out of the soil ; but these constituents are found almost wholly in the seed and straw and not in the fibre, so that if the straw is returned to the soil, and the seed fed on the farm, there will be little loss in growing flax for the sale of fibre only. The Hop is a member of the nettle family. It is a perennial plant. It is started by cuttings, in hills about six feet apart. The plants are not woody enough to support themselves, and therefore climb up to the air and sunshine by twining. The hop blossoms are picked by hand when just ripe (a condition learned only by experience), and dried in a kiln or drying house (called an oast house in Kent, England), when they are packed and sold for use in brewing. The value of the hop is greatly influenced by the climate. Hop vines always twine in the same direction — to the right. Bindweed and morning glory twine to the left. How do the grape vine and Virginia cree{)er climb and support themselves ? How do peas and tares ? We have already learned that the two important parts of a blossom are the pistils and stamens, that perfect blossoms have both, but that in some plants there are blossoms having pistils but no stamens ; and in other plants there are blossoms having stamens but no pistils. The former blossoms are yo AGRICULTURE. cSiWedi pistillate blossoms, and the latter staminate. Only the pistillate blossoms form seed. In some cases pistillate and staminate blossoms grow on the same plant, as in cucumber vines. These are said to be monoecious plants. In other case^ the pistillate and the staminate blossoms grow on different plants. These plants are said to be dicecious. The hop plant is dioecious. In setting out a hop-yard, therefore, it is necessary to have here and there some plants that produce staminate blossoms, to supply pollen for the pistillate. Tobacco is an annual, grown only in warm climates, but much farther north than cotton, being grown in the milder parts of Quebec and Ontario. It is grown for its long, broad leaves. In the use of tobacco we observe three things; first, it burns readily; second, it gives a very large amount of ash; third, it has a peculiar effect upon the smoker. It burns readily because, in addition to its woody or fibrous matter, it contains large quantities of potash, which readily unites with the oxygen of the air. Its ash forms from 15 to 20 per cent, of the entire plant. Its effects upon the human system are due to a compound known as tiiiotine, similar to theine in tea and caffeine in coffee. In their pure condition these " alkaloids " as they are called, are poisons. From the following statement it will be seen that tobacco is very hard upon the soil, and requires very rich fertilizing. An acre of tobacco will yield about 1,500 pounds of tobacco leaf. The whole crop will contain about 70 pounds of nitro- gen, 15 pounds of phosphoric acid (in phosphates), and 150 pounds of potash — 235 pounds in all. An acre of wheat, yielding 20 bushels of grain, will contain 40 pounds of nitro- gen, 15 pounds of phosphoric acid, and 18 pounds of potash — 73 pounds in all. An acre of meadow hay, yielding 2 tons, will contain about 56 pounds of nitrogen, 14 pounds of phos- phoric acid, and 60 pounds of potash — 130 pounds in all. WEEDS. 71 CHAPTER XVI. WEEDS. "A weed is a plant in the wrong place." Weeds are Plants. — White clover is frequently sown with grass seeds on lawns, yet a few plants in a fine lawn of June grass would be considered weeds. Tares are grown as a fodder crop ; in a wheat field we call them weeds. Ox-eye daisies and goldenrod in a flower garden are fine plants, but in pastures or hay fields they are weeds. A weed is a plant just as much as wheat, corn, or clover. It has all the parts of plants, grows like other plants, and forms new plants. But it is a plant that we do not want ; it is a plant out of its place, or, rather, it is a plant in the wrong place. Objections to Weeds.— We might say that weeds are objected to because, whether valuable or not in other places or at other times, they are not what we are working for. If a man engaged in moulding plowshares should find one- half of his work turning out to be large cannon balls he would consider his work, to that extent, a failure, because his business is to make plowshares, not cannon balls. So if a farmer finds his work resulting half in grain or hay, half in weeds, his work is a failure to that extent. But we must have particulars. I St. Weeds require some labor, whether we permit them to grow or try to destroy them. Sometimes our labor helps the weeds to grow more rapidly, just because we do not under- stand their nature. Weeds mean work. 2nd. Weeds, through their roots, take up food from the soil. Our most valuable plants do not take very much out of the soil ; on the average not more than one-twentieth of their 72 AGRICULTURE. total weight. Usually, however, there is not very much food just ready for the plants to take up. If there are weeds growing with the crops there will be less food for the latter. Some of the weeds are heavy feeders. 3rd. Many weeds have broad, spreading leaves which cover over the tender young plants of our crops, and by shutting off the sunlight smother them out. This may be seen best in a pasture or on a lawn (dandelions and plantains for example). 4th. Weeds draw moisture from the soil through the roots and give it off through the leaves; weeds help to dry up the soil. 5th. Weeds are feeding and breeding grounds for insects and they assist in the spread of many crop diseases. 6th. Frequently weeds are poisonous to stock, they taint the milk, or they destroy wool. 7th. Weeds offend the eye and degrade the taste for farming. Because of these facts every weed should be considered an intruder, a thief, and a murderer of other crops, and every farmer should try to keep his soil as clean as possible. To succeed it will be necessary to know as far as possible the nature and the mode of growth of the weeds. Nature of Weeds. —Wild mustard, lamb's quarters, shep- herd's purse, and wild oats form seed the first season ; the plants then die and the seeds are ready to sprout the next season. Such weeds are annuah. They generally have fibrous roots and produce a large number of seeds. The seeds in many cases are oily and are covered with hard coatings ; they are able to sprout after lying in the ground a long time, even for many years. Thus the seeds may be plowed under deep and tlie next year the field may appear clean. After a couple of years they are brought up by plowing and cultivation, and once more the field will appear weedy and dirty. If the weeds are cut off before the seeds form they will be destroyed, for they cannot survive or reproduce unless seeds are formed. Weeds. ^3 The wild carrot, the wild parsnip, teasel, burdock, blue weed, and mullein grow like our common garden roots — they do not form their seed until the second season. They are bien- nials, and are usually tap-rooted. It will not do in their case simply to cut off the tops the first year, for they will spring up again. Continued cutting off of the top, or, better still, the complete removal of the root, will be found necessary with such. The ox-eye daisy, plantain, sorrel, and dandelion live on from year to year ; they are perennials, and, therefore, most difficult of all to get rid of. Some of the perennials, such as the Canada thistle, couch grass, toad flax, milk weed, perennial sow thistle, yarrow, and bindweed are creeping in their roots, that is, they spread by the root, and therefore are among the worst weeds, and, because of this, they are most difficult to completely remove, and require most thorough treatment. It is important, therefore, to know the nature of weeds, as to whether they are annuals, biennials, or perennials, and as to whether they are creeping perennials. Naming of Weeds.— The weeds are classified like other plants. Frequently lists of weeds are given, having their common names and also long scientific names, difficult to spell and difficult to pronounce. Why is it necessary to have long scientific names for weeds when common names are easily pronounced, are easily understood, and are so suggestive? Take an example. Teasel, water thistle, tall thistle, Indian thistle, English thistle, and Fuller's card are all local names for one weed. All do not know it by the same name, but as dipsacus sylvestris every botanist in any part of the world would know it or would be able to find it in scientific books. Blue weed, blue thistle, blue stem are various names in different places for the same weed. Stick seed, stick weed, stick tights are different weeds, although somewhat similar in name; and stick weed, in fact, is applied to different weeds in different places. 74 AGRICULTURE. CHAPTER XVII. INSECTS OF THE FIELD. Grasshoppers. — We .shall first refer to an insect that attacks nearly all the plants of the field— the grasshopper. You catch one of these insects in the hayfield or the pasture and carefully observe its form. First of all you count its legs — there are six, three on each side. By comparing with other insects you notice that all except spiders have the same number. You observe that its legs are jointed and that its very long hind legs are well suited to jumping or hopping. Then Fig. 28. — A Grasshopper. you notice that its body is put together in parts or sections. So are those of other insects — hence the name " in-sect." It has also two long curved feelers sticking out in front of its head (each is called an antenna and the two are called antenna). Then observe the two large eyes and the mouth fitted for biting or cutting through the leaf and the stalk of the grass. The outside of the body is hard and the inside soft — a dead, dried- up grasshopper has the form of a live one. A horse or a cow has its bones within and the soft flesh outside, but the insect has its bony part, so to speak, on the outside. INSECTS OF THE FIELD. 75 Next we must learn something of its mode of increasing — its life-history. Grasshoppers are male and female and tht; latter lays the eggs. Sometimes she does this in soft wood but generally in the ground, in the fall of the year, after the damage to crops has been done. The female makes a hole in the ground, in which she lays a number of tiny eggs. These are covered with a sticky substance which causes them to hang together like a pod. The nest or hole is then covered over and there they remain unseen through the winter. In the warm spring they hatch out and thousands and millions of young grasshoppers appear. Their appearance in large numbers is thus explained. They have no wings, but they can spring about, and they have vigorous appetites. Later on their wings appear, and now they are able to fly. They have done much damage where they were hatched and now they can fly away long distances, eating up and cutting down grass and hay and grain. Later on the females deposit their eggs, to be hatched ■ out the next year. And so they continue year by year. Some- times severe weather destroys their eggs or the young insects. Other insects may eat them up. Tiny forms of life (parasites) prey upon them. Diseases of various kinds destroy them. Knowing their mode of life, their life-history, the farmer can check them. For instance, when a field becomes infested with them, it can be ploughed up in the fall and their nests of eggs destroyed. A change or a rotation of crops is advisable. Lisects are arranged in orders. The principal basis of this classification is the form or structure of the wings. The grass- hoppers are " straight-winged." Crickets and cockroaches belong to the same order. Entomology is the science of insects, as Botany is the science of plants. The Entomologist sometimes uses the word orthoptera when stating the order to which grasshoppers belong. Moths and Cutworms. — Li gardens and fields we often find the plants being cut off, but can see no insect or other 76 AGRICULTURE. animal at work. If, however, we turn up the soil we find some dull-colored, greasy-looking caterpillars of almost the same color as the soil. On the top of the ring or section next to the head is a smooth shield; the head is smooth and shiny; there are some bristles along the side ; and, when disturbed, the worm curls up. This is a cutworm ; rather, this is one of the cutworms, for there are very many different kinds. They stay in the ground during the day and come out at night to eat off the leaves and stalks. These cutworms have been hatched from little eggs in the spring, summer, or fall. The cutworms, or caterpillars as they may be called, are quite small when first hatched, but they are heavy feeders and grow gradually to the size shown in figure 29, and by their feeding they do great damage in garden and field. When they have become full grown they burrow into the soil several inches and become a hard, deadlike mass similar to that shown in figure 29. This is what is known as the pupa of the insect. For several weeks, perhaps all through the winter, they remain asleep in this condition. Then another change takes place, the hard shell of the pupa cracks and there comes forth a moth with wings and legs and feelers, looking entirely different from the caterpillar or the pupa. These moths are the perfect insects ; they are dull in color and are very active at night. They lay eggs which hatch into cater- pillars, and the caterpillars go to sleep in the pupa form to again come forth as perfect moths. In most cases the eggs are laid in the fall, and the young caterpillars, less than half an inch long, lie in the ground quiet all winter. In the spring they attack the young crops and do most damage. About July they are full grown ; then they go into the pupa state and come out moths in August. If the fields become weedy and there is much vegetation on the land in the fall the moths have a fine place for laying their eggs, and there is plenty of food for INSECTS OF THE FIELD. 77 the young caterpillars. Therefore the thorough cleaning of the land after harvest is one means of checking them. The army vv-orm also is the caterpillar of a moth, and is so called from its occasional appearance in immense numbers, when they devour nearly every particle of plant food in the Fig. 29. — Army worm, pupa of same, ami moth into which it changes. The eggs are seen along the leaf. This is a cutworm. course of their march. Then we have other moths, the larvae of which live upon the fibre of clothing, clothes moths. All these are similar in form and in their changes, and all are very destructive. Besides the egg we have, in most insects, the three forms or states, namely: the caterpillar, or larva ; the pi'p^i, or resting state; and the perfect insect, ox imago. All moth.s, butterflies, bees, beetles, and flies pass through these same three states — thus we see that the insects differ from other animals both in their general form or appearance, and also in their method of growth or course of life. In the case of grasshoppers and some bugs there is no pupa or resting state. 78 AGRICULTURE. Butterflies. — We frequently find mistakes made in the use of the words moths and butterflies. Both have scaly-wings as we see when we catch them and find the fine powder from the wings sticking to our fingers. This powder under a magnifying glass appears like scales of different shapes and colors. There may be several hundred thousand of these tiny scales on a single wing. However, there are differences in the two insects ; the Fig. 30. — A While Ca.bbage-butterfly, a "scaly- win jed" insect, a is the caterpillar or larva, and b is the chrysalis or i)upa. moths usually fly about at night and the butterflies in daytime. Then if we examine the feelers or antenna; we see that those of the moths are usually feathered, while those of the butterflies are more or less thread-like and knobbed at the end. We can readily observe the changes in the common butterflies. The eggs are laid on the leaves of trees. Little, crawling, bristly caterpillars are hatched from these eggs. They grow in size, and it is only while in this larval state that that they are destructive. The caterpillars do injury principally to the plants of the garden, orchard, and forest. The pupa of a butterfly is called a chrysalis. It is usually rough and angular, whereas that of a moth is smooth and oval and often covered with a silky cocoon. From the chrysalis later on there comes forth a beautiful butterfly. INSECTS OF THE FIELD. 79 Beetles are so common that nearly every person is familiar with their appearance. Some are very small; those found in this country are usually not larger than the figure shown here. In some foreign 'V '"^K ^ countries, however, they are fcnmd four to six inches long. Observe the three sections of the beetle. There are two 2)airs ,^ti^ Hliiiiil ^\ of wings, the upper pair quite hard or horny, covering the pair of filmy wings beneath. These sheath-wings are pecul- iar to the beetles. How many legs have they ? Where are they attached to Fig. 31.— a ground beetle, , . -« T^- 1 1 11 °"^ °^ 'he "sheath the insect? rmd the eyes and observe winged" insects, very , , ^ , , 1 r 1 destructive to cutworms. the shape or the mouth and feelers or horns. The beetles go through much the same changes observed in moths. In the case of the beetles, however, the b.rval form is known as a grub. The white grubs found in the soil are the larvie of large brown beetles. Fig. 32 — Ladybird beetles, or "lady-bugs." The straight lines represent the average natural length. These beetles are very destructive to plant lice. Among the beetles we have a large number of very des- tructive insects. There is, for instance, the potato beetle which does so much damage to the potato plant by eating the leaves. See fig. ^3- 'I'he hard-shelled beede lays her orange-colored eggs on the under side of a leaf. These eggs hatch into the soft-skinned larvae which eat the leaves. The larvae change to pupne and these to the full- grown winged insects. Since the larvae feed on the leaves a simple remedy is to sprinkle some poison (Paris green) on the leaves just before they begin to feed, or to destroy the 8o AGRICULTURE. eggs before these hatch. Why does the eating oflf of the leaves above ground injure the plant in producing tubers under ground ? Fig. 33. — Colorado beetle or " potato bug." a, eggs on underside of leaf; b, larva that eats the leaves ; c, pupa ; d, imago or perfect insect ; e, wing-cover ; /, leg. The turnip flea-beetle is sometimes wrongly called "the turnip fly." Our illustration shows the shape of the beetle and the larva much larger than life. The little black beetles pass the winter under any rubbish or clods of earth, and in the spring seek out some weeds near by that belong to the same family as the turnip, such as mustaid and shepherd's purse. As soon as the young turnips appear above ground they do great damage by eating holes in the leaves. One of the remedies appears to be the keeping of the ground clean of rubbish and the destruction of all weeds, especially wild mustard or charlock, false flax, shepherd's purse, pepper-grass, etc. The beetles lay their eggs on the roots of the turnip. In a few days the larvae or grubs hatch out and feed upon the roots. Fig. 34. — The turnip flea- beetle. INSECTS OF THE FIELD. 8i When full-grown they enter the pupa state in the ground and emerge full-grown beetles. There may be several broods in a season. By having the ground in good condition before the seed is sown the young plants grow rapidly and soon get the start of the beetles. The weevils also belong to the same order as the beetles, and are most injurious to grain crops. The pea-weevil may be taken. Its eggs are laid on the outside of the young pod. The larva hatches and eats its way through the pod and into one of the peas, where it lives upon the substance of the pea. The change to the pupa takes place in the pea. Sometimes these beetles come out in the fall, but in most cases they stay inside the peas until spring. They do great damage to the peas by destroying the germ. All grain weevils may be killed by placing in the bins some poisonous substance that will readily evaporate, such as carbon bisulphide. The bins are shut tight and the beetles are killed by the fumes. If the peas are kept over until two years old the beetles will mature and die in the bins the first year, and the seed then sown the second year will be entirely free from the pest. These beetles do not lay their eggs, or oviposit, on dry peas. Any seeds of which the germs have been eaten by the grubs will, of course, not sprout. If the seed peas are placed in water the infested ones will float. \Miy ? These may then be taken out and only sound peas sown. 35. — Pea-weevil ur "pea bug." a, the mature beetle ; b, the larva or grub. 82 AGRICULTURE. Fig. 36. — Currant sawflies, or "currant-worms." a is the male ; b the female. The perfect in- sects have yellow bodies. The eggs are laid along the ribs on the backs of the leaves. F'S- 37- — Lars'ae of currant-worm, green, dotted with black spots. Transparent-Winged Insects. — This order includes ants, bees, wasps, hornet.s, and sawflies. The scientific name for this order is hyfuenoptera. The study of an ant hill will be found very interesting. We need not look for any in a well-cultivated field. No warning need be given that in the study o f bees, wasps, and hornets great care must be used. As for saw- flies, illustrations given in figs. 36 and 37 will serve to make their acquaintance — to "iden- tify" them. They are called sawflies because they are able to cut or saw into leaves with their abdomen in order to make nests for their eggs. The stems of wheat are sometimes cut off by sawflies, and the galls in oaks are produced by gall-flies which also belong to the order of transparent- winged insects. INSECTS OF THE FIELD. 83 Bugs — All bugs are insects but all insects are not bugs. When we speak of bugs we mean such insects as the many kinds of plant lice. Aphis (plural, aphides) is another name for a plant-louse. This order of insects is known as the half-winged {hemipiera). Some have only two wings and some have four. We find plant lice quite common on many house plants and garden plants. Orchard trees, cabbages, hops and many other plants are much infested by lice, some very small, some large enough to be easily studied. There are some also Fig. 38. — Plant lice, half-wiiTjed insects. Cross lines and small figure show natural size. that do much damage to grain, especially wheat, barley, oats, and rye. The plant louse or apliis is generally green or black, sometimes yellow ; in fact if we observe closely and frequently we shall come to the conclusion that the color of the aphis is not unlike the color of the leaf, stalk or head that it feeds upon. We notice also that the leaves of plants upon which the aphides are found in large numbers soon curl over and become sickly. If we examine a large plant louse we find that it has a strong beak about one-third the length of its body, so that it is well fitted to pierce through the skin of plants and to suck the sap. They live on liquid food. An- other thing we observe in regard to them is that the lice are found in large numbers, and they multiply very rapidly. Some lice feed largely upon other insects, and are therefore bene- ficial. 84 AGRICULTURE. Kig 39 —Caterpillar covered with parasites. In the case of house plants, garden plants and orchard trees we can wash and spray with solutions that destroy the lice, but with lice that injure the grain such means are not yet practi- cable. Why then do not the lice multiply so as to eat up everything in the fields? Simply because there are other insects that keep them in check. There are some tiny flies that attack the lice and lay their eggs right in the bodies of the lice. These parasites soon kill the lice. Other insects are destroyed in the same way, such as cater- pillars and grasshoppers. If we carefully examine the leaves of trees or other plants infested with lice we may find some of the beautiful little lady-beetles and their larvaj feeding upon the lice. Another enemy of lice is the aphis-lion, the larva of a lace-wing fly. Flies— If you examine a common house-fly or a mosquito, you observe that it has only two wings. Here then we have another order, that of the "two-winged" flies, known as diptera. The Hessian fly, the wheat midge, the many flies of root plants, mosquitoes, fleas, and many of the flies that annoy stock— all have two wings only and belong to this order. The Hessian fly appears in spring as a small winged insect with long legs. The female lays about twenty eggs in the fold or crease of the leaf of the young wheat plant. After a few days the larvae hatch and get down between the stem and leaf-sheath. Here they feed on the plant and weaken it so that the heavy hjad soon after topples over and the grain is destroyed. The eggs may be laid either in the spring or in the early fall. When the latter ig the Fig. 40 —The Hessian fty, a two-winged insect. INSECTS OF THE FIELD. 8S case the young insects gent-rally pass through the winter in the pupa state, known as the " the flax-seed " condition, because the pupa case is like a flax-seed. Any such found in wheat screenings should of course be burned, and where found in the field the stubble should be cut and burned. The principal remedy for the Hessian fly then is to completely burn all material containing the young insects and to change from wheat to a cultivated crop, as roots or corn. The Hessian fly attacks wheat, barley, and rye. The Clover-Seed Midge lays its eggs in the young clover- heads where the larvce or orange-colored maggots hatch out and do much damage. Then they fall to the ground and com- plete their changes, appearing as full-grown insects towards the latter part of summer, ready to do damage again to the second crop of clover. Where the midge is doing much damage it is evident that the pasturing off of the first crop of clover will tend to destroy the larva. The first crop also may be cut early, when in full bloom, be- fore the first brood of maggots develop. A regular rotation of crops tends to keep in check these and many other injurious insects. Conclusions : 1. Insects are so-called because they are made up of sec- tions. There are three main parts, the head, the thorax or trunk, and the abdomen. The thorax and abdomen are also made up of sections (see illustrations). 2. The legs and wings of the adult or perfect insect are all attached to the thorax. Fig. 41. — The mid.'e. The smaller insect below is of natural size. &6 AGRICULTURE. 3. The adult insect usually has two large, compound eyes, that is, eyes made up of many parts. The antennae, or " feelers," are attached to the head. Some persons think that insects hear by means of their antennae. 4. Insects breathe, not through the mouth, but through small holes or openings along their sides. These are called " spir- acles " and are connected with air tubes passing through the body. 5. As a rule insects pass through three forms after coming from the eggs, known as : first, the /arva (caterpillars, grubs, slugs, maggots, etc.) ; second, the pi^pa (called chrysalis and cocoon in certain forms) ; and third, the imago or perfect or adult insect (butterflies, moths, beetles, flies, etc.). 6. Insects are kept in check by nature in various ways. They destroy one another; for instance, the ladybird beetle, the ground-beetle, the tiger-beetle, the aphis-lion prey upon other insects. Toads and lizards devour large quantities of insects. Many birds feed upon insects almost entirely, and are hence called " insectivorous birds." 7. Insects lay eggs when in the imago or perfect form, but the damage to plants is done principally when in the larval form. The imago or adult insect is full grown when it comes from the pupa. 8. Insects injure plants either by biting and eating the foliage and other living parts, or by sucking their sap. Biting insects, such as cutworms and grubs, may be destroyed by placing poison (Paris green, etc.) on the plants. Sucking insects, such as plant-lice, are destroyed by dusting the plants with insect powders or by spraying them with an emulsion of kerosene and soap— thereby closing up the breathing holes of the insects. 9. Where the insects of field crops cannot be destroyed by spraying, the best practice is to keep the fields and fence corners clean and free from weeds and rubbish, to thoroughly till INSECTS OF THE FIELD. 87 the ground, to adopt a good system of rotation of crops, and to keep the seed grain clean. 10. Insects are arranged according to their wings. The following are some of the orders : 1. Nerve-winged or nenroptera dragon flies and may-flies. 2. Straight-winged or orthoptera grasshoppers and crickets. 3. Half winged or hemiptera bugs and phml lice. 4. Sheath winged or colcoptera Ijcelles. 5. Scaly winged or lepidoptera Ijulterflies and moths. 6. Two-winged or Diptcra house-flies and mosijuitoes. 7. Transparent winged or hymenoptera . . .be:s, wasps, sawflies and ants. Note. — The scientific names for the above orders of insects are accented on the second syllable before the last, thus : neu-roptera, or-thop tera, etc. These words are derived from the Greek wovd pteron, which means a wing. AGRICULTURE. CHAPTER XVIII THE DISEASES OF PLANTS. Effects of Disease. — House plants, especially those with large leaves, often become covered with small dark spots which gradually become larger and make holes in the leaves, which soon die. We can see the same on the leaves of the apple tree, the pear tree, and can also find them on the leaves of the shade trees. This spotting of the leaves is a disease. We can find similar diseases on the leaves and stalks of grain. When plants become diseased, they lose some of their vitality, as we say, and we need not look for much fruit or grain. It is therefore of importance that disease among plants be prevented, just as we try to prevent sickness of animals, or of ourselves. Again, in addition to the disease attacking the leaf, the branch, the stalk, or the root, it may attack the fruit. You have seen the brown and black spots or scabs on the apple and the pear ; you have seen the ear of corn all overgrown with smut, and the heads of wheat and other grains covered with a dirty growth; you have seen the potatoes affected by the "scab" and the "rot." All of these are cases of disease. Whenever the plant is diseased in any part the fruit or the seed will be found to be either small and of a poor shape or else entirely useless. Scabby apples, smutty corn, and potatoes affected with the "rot" are not salable, they are of no use, in fact they are harmful. Why are they harmful ? In the first place, such food is not wholesome. Further, we know that very often one animal will take disease from another — scarlet fever, diphtheria, small-pox, and even influenza, ora "cold" THE DISEASES OF PLANTS. 89 will pass from one person to another. It is so with the diseases of plants. If potato " rot" gets a start it will go from potato to potato until all are affected. If we allow smut to stay in the corn field it will spread. If a cherry or plum tree has black-knot the disease will soon at- tack the other trees until all are killed or nearly killed, and no good fruit results. This point, therefore, we should firmly fix in our minds, that whenever disease appears upon a plant we should first of all try to prevent it from spreading by destroying the diseased part, or, if necessary, the whole plant. And there is only one effective way of destroying disease in plants, and that is by burning. It will not do to cut off a black-knot limb from a cherry tree and throw it in the fence corner or on the brush heap. The disease will spread from the cut off branch. It should be burned up. So with the peach tree affected by "the yellows." Once the disease has started it is useless to try to cure it or to remedy it. The diseased tree or plant or the diseased part should be destroyed. But we can prevent it from spreading, if we take action in time. Substances and methods used for preventing the spread of the disease are called "pre- ventives." Nature of Disease. — If we begin with a giant oak or white pine and arrange the plants known to us in order of size down to the smallest grass plant, only a couple of inches high, or the still smaller moss, we shall take in a great many plants, but not all. There are very many others still smaller and much simpler in their form and mode of growth. Perhaps you have observed the greyish lichen growing on the old fence rails or on the side of a boulder. It is not much thicker perhaps than this paper and yet it is a kind of plant — it is one of the lower orders of plants. Then you have seen the blue mold or fungus on the side of a cheese, it also is a low form of plant life. The smut growing in the ear of corn, the rot of the potato, the rust of wheat, and the other forms of 90 AGRICULTURE. 1 ^0 disease in vegetation are all minute plants. These lower forms of plants live in and upon the higher plants, taking the food out of the plants and thereby checking their growth and even killing thern. Where did they come from ? The field crops grow from seeds, and when they are ripe, they Droduce other seeds Fig. 42. — a diseased leaf. The minute plant causing ^ _ disease is growing in a leaf and is throwing off ripe that will again grow. spores (seeds), which will settle on other leaves, ° ° ' and thus cause the spread of the disease. A Now these small ragged hole will remain in the leaf, usually brown in color on the margin plants, these disease plants, grow from tiny seeds generally called "spores," and when they mature they form other spores which will be carried about by the wind, settle on other plants, start growing there, and thus spread themselves. A small dark speck appears on the leaf of a house plant —the spore has started to grow. The speck grows to a large spot, it soon becomes darker, then the whole spot or scab breaks open — the spores are ripe and fall off or are blown away, and the life of this disease plant begins again on another leaf or on another plant. Why did we not see the spores at first ? Simply because they were too small, they can be seen only by a magnifying glass or a microscope — hence these plants are sometimes called microscopic plants. Prevention of Disease. — If we could destroy these spores we would, of course, prevent the growth of the disease plants. In addition, therefore, to destroying all plants and parts of plants known to be diseased, we should use preventives when- ever we think the disease is likely to be started. The leaves and stalks of house plants are washed from time to time in order to clean them from dust and also to wipe off disease spores. One of the principal substances used for killing these THE DISEASES OF PLANTS. 91 spores in the case of trees and shrubs is bluestone (also known as sulphate of copper). When the fruit grower sprays his trees to check disease on the branches or leaves or fruit he uses a solution of bluestone. Sometimes he makes a mixture of Paris green and bluestone, the Paris green being to kill all insects that eat the leaves, and the bluestone to destroy the spores or Fig. 43. — Two forms of minute plants growing in leaves and in fruit of plants, causing disease of plants. Very much enlarged. seeds of disease. There are so many different forms of disease (rusts, smuts, mildews, blights, etc.) that we have not space to mention them. But we shall here give only the simplest modes of preventing disease. Smut, in growing wheat, generally comes from wheat that has grown in fields where smut existed the year before, that is, the wheat when sown had the spores of smut already in the grain. The disease then can be prevented by destroying the spores in the seed that is sown. Make a solution of one pound of bluestone or copper sulphate in twenty-four gallons of water. Soak the grain to be sown in this solution for from twelve to sixteen hours. Then the seed may be dipped in lime water for five minutes. After being thus treated it may be sown and no smut will appear. Sometimes the spores of smut 92 AGRICULTURE. on the seed wheat are killed by dipping it into hot water shortly before sowing, but the bluestone treatment is preferred. The potato tubers are sometimes found to be covered with a rough scurf. On cutting the potato it will be found to be affect- ed also under the skin. This roughness is the result of a disease called the potato scab. If scabby potatoes are planted the tubers produced from them will be scabby, and if clean potatoes are planted in the ground where scabby potatoes were lately grown, the new crop will likely be scabby. The best rule to follow, then, is to plant only perfectly clean potatoes in ground where no scabby potatoes were previously grown. Some success has been had from rolling scabby potatoes in sulphur before planting, but it is much more satisfactory to destroy the scabby potatoes and plant only clean tubers in clean ground. The rot or blight of potatoes is quite a different disease, produced by a different fungus. Different names for this disease are rot, blight, and downy mildew. It is also called " late blight," because there is a somewhat similar disease that attacks the plants earlier in the season called " early blight." The potato leaves show brown spots. These spread rapidly, especially if the weather is warm and moist. The under sides of the leaves soon become covered with a light colored growth ; these are the spores or seeds growing on tiny threads. The spores appear to fall to the ground and by rains are washed through until they reach the tubers, to which they at once attach themselves and then begin their growth. Then the rot ing of the potato begins. It is thought by some that the disease in some way reaches the tubers by way of the stem. It may be that the disease is transmitted from the leaves to the tubers in both ways. To prevent the spread of this disease the growing plants are sprayed or sprinkled with a solution of bluestone (sulphate of copper). The disease is sometimes called a.Jungus (plural, _/««^/), hence the preventive is called di fungicide. ROTATION OF CROPS. 93 CHAPTER XIX. ROTATION OF CROPS. Importance of Rotation. — If we get a large yield of any crop from a certain field, should we not grow the same crop year after year ? This is done, for instance, on the rich prairie soils, where wheat has been grown year after year upon the same soil. In former times this was done also on our soils when they were new and rich. But what has been the result ? The soils of many farms have run down and good crops are got only by heavy manuring. In the best farmed countries of Europe, where, after the experience of hundreds of years, larger yields of wheat and other crops are obtained than we get in Canada, it has been found advisable to change the crops grown from year to year. The experience of Europe and of Canada both prove that the best farmers succeed in crop growing only by rotating or changing their crops. Reasons for Rotation. — i. The different crops, as we have seen, are all made up of the same elements, and take up food from the soil ; but they do not all take up soil food of the same amount or in the same form. Thus the potato, tobacco, and fruit trees take up a great deal of potash; the grain crops take up more phosphates. The crops differ in their feeding just as animals differ. The dog does not eat just what the cat does, nor the horse just what the pig does. If cattle and sheep are pastured together, the sheep will pick out certain weeds and grasses, and the cattle may prefer others. Wheat, for instance, requires nitrates as one 94 AGRICULTURE. of its most important foods, and if we grow wheat year after year we may soon exhaust the nitrates available; but if we grow wheat one year and some other crop the next, the second crop may be able to feed well and flourish upon food left by the wheat. 2. The plants have different methods or powers of getting the same kind of food. Thus clover or peas will get nitrogen by means of the little knots or tubercles (page 57) upon their roots, whereas wheat has not this power to take up free nitrogen. A clover crop will need more nitrogen than a crop of wheat, and yet, because of the root tubercles, we do not apply nitrates to a clover crop, but nitrates may be applied to wheat with good results. 3. The plants have different kinds of roots. Those of barley are very short, those of wheat longer, those of red clov^ and lucerne still longer. A deep-rooted crop feeds lower down than a shallow-rooted crop. If, then, we grow clover this year and wheat the next, we grow these crops, to a great extent, in two different soils. We use surface soil for one and under-soil or sub-soil for the other. By changing from a shallow-rooting crop to a deep-rooting, or from a deep-rooting to a shallow- rooting, we, as it were, change the soil from year to year. This is one of the most important points to observe in rotating crops. 4. By rotating crops we change the treatment of the same soil, since we do not treat the soil exactly alike in preparing it for different crops. Some crops, also, are cultivated and others are not. We thus give the weeds different treatment. The weeds differ as do the crops — there are annuals, biennials and perennials ; there are long-rooted and shallow-rooted ; there are early seeding and late seeding weeds. The same treatment year after year may be just the right treatment to encourage certain weeds to grow and spread. The growing of wheat year after year in the west is causing the spread of some very noxious weeds. By changing the crops, and therefore the treat- ROTATION OF CROPS. 95 ment of the soil, we do not give the weeds so good a chance to rob the crops and infest the fields. 5. The insects also make their homes on certain crops and in the ground. By rotating the crops we disturb the insects and help to keep them in check. If we remove the food of the insects, bury them or their eggs deep in the soil, or turn them up to the frost we are helping to destroy them. 6. Some crops mature early in the year, as fall wheat and barley ; others late in the fall, as corn and roots. Some are in the ground but a short time, others for a long time, and so they have different lengths of time for feeding. It is often helpful to have a long-feeding crop followed by a short-feeding crop, as in the case of roots followed by barley. We may then sum up by saying that crops differ : As to the kind of food which they take up ; As to the amount of different foods which they take up ; As to the length of their feeding roots ; As to the length of time that they are feeding ; As to the treatment we give them (cultivated or not) ; As to the weeds that associate with them ; As to the insects that infest them ; For these and other reasons the best farmers always pay careful attention to the proper rotation of their crops. Samples of Rotation. — Let us take what is called a four- year or four-course rotation — turnips, barley, clover, wheat. The first crop requires thorough cultivation and gives a chance to manure heavily for the entire course. Turnips are bi- ennials, and therefore long-growing, feeding until late in the year. Then comes a shallow-rooted, quick-growing crop of an entirely different nature. The clover at once follows barley and sends its roots deep. It feeds upon the free nitrogen of the air in the soil through its root tubercles, and when plowed in leaves a large quantity of material in the roots and Stubble to make food for the wheat. The manure applied with g6 AGRICULTURE. the roots has by this time been well worked over. Last comes the wheat with roots of medium length, feeding in the fall and spring and coming to maturity in the summer of the fourth year. A variety of crops for the farmer's use is at the same time obtained. Here are some other rotations that may be examined : I. Wheat I. Barley I. Wheat I. Barley 2. Hay 2. Hay 2. Hay 2. Hay ' 3- Hay 3- Pasture 3- Pasture 3- Oats 4- Pasture 4- Corn 4- Pasture 4- Peas 5- Oats 5- Oats 5- Oats 5- Corn 6. Peas 6. Peas 6. Peas 7- Roots 7- Corn The system, of course, must be suited to the soil, the kind of farming adopted, and the circumstances of the farmer. Rotations may have to be changed from time to time, but, if the principles upon which rotations are based are well understood, there will be no difficulty in making changes, and in forming rotations suitable to the needs and conditions of the farm. The four-course rotation may be taken as a basis, and changes made to lengthen it ; thus corn may be put in place of roots, and barley may be seeded to clover and timothy, and a year or two of hay and pasture, or both, may be had before returning to a cereal crop. If the soil is the farmer's capital, then growing the same crop year after year leaves part of the capital idle. Rotating the crops causes all of the capital to do its share in turn in producing income, and, it may be, in increasing the amount of capital. THE GARDEN. 97 PART IV. CHAPTER XX. THE GARDEN. "A small garden well-kept will produce more than a large garden neglected." Selection of Garden Plot. — The garden plot should be near the house, and at one side rather than in front of the house. A neat, dry walk should lead to it. A loamy soil, well drained, and well manured will be suited to the crops required. If it is long and narrow in shape rather than square, much of the cultivation may be done by horse help. A wind-break or shelter-belt of spruce or other trees will add to the appearance as well as to the value of the garden. Garden Crops. — In every farmer's garden there may be grown the following crops : Beets, Rhubarb, Carrots, Tomatoes, Potatoes, Celery, Parsnips, Egg-plant, Radishes, Lettuce, Cabbages, Peas, Cauliflowers, Beans, Sweet Corn, Horse-radish, Onions, Cucumbers, Asparagus, Pumpkins, Salsify, Melons, Much that has been said about field crops, their mode of growth, and their enemies, both insects and diseases, will ap- Strawberries, Raspberries, Currants, Gooseberries, Spinach, Sweet Marjoram, Thyme, Sage, Summer Savory, Parsley, Garden Mint. 98 AGRICULTURE. ply to the crops of the garden. More may be learned by working among the plants growing in the garden, and at the same time using your eyes. WHiat parts of the following plants do we use as food ? Common rad- ishes, horse radish, cabbage, cauliflower, lettuce, celery, artichokes, onions, asparagus, potatoes, rhubarb, and spinach. Explain the bleaching out of celery by Vjanking up. Will the stalks bleach out if grown on the level close together ? Wliat is the difference between top onions, potato onions and onion sets? Is lettuce an annual or a biennial ? Classify the crops given above as annuals, biennials and perennials. Are a'l the blossoms on a cucumber vine alike? Which produce fruit? Is the cucumber plant monoecious or dioecious? See p 'ge 70. The Strawberry. — If you pull off the petals of a rose blossom you find the stalk on which it grew is somewhat enlarged at the end. This little swollen end is called the "receptacle." In the case of the strawberry which we eat, we see a large number of small hard grains in little pits on the surface of the soft, fleshy fruit. If the hard grains were large enough we could open them, and see that each one is a little seed. The part we find so pleasant to eat, then, is not the seed. What is it? By examining the stalks bearing green berries as well as those bearing ripe berries, we observe that it is the swollen end of the stem, that is the receptacle. If a ripe berry is cut in two, the seeds will be found to be connected with the stalk. The strawberry plant is a member of the rose family 2' ' ' ',',". Irosacecs) to which belong a large Fig. 44— A strawberry plant v ' . . properly set out. number of our common fruit-bearing plants, as well as some other common plants, such as the plum, the cherry, the strawberry, the raspberry, the blackberry, the wild rose, the hawthorn, the pear, the apple, the quince. THE GARDEN. 99 Compare the leaves and blossoms of the strawberry, the apple, and the wild rose ; also the fruit of the hawthorn, the wild rose, and the mountain ash. Observe how the leaves are arranged on the branches. At what place do the blossoms appear ? How many petals in every blossom? In a patch of wild strawberries you find that the plants spread in all directions, that the fruit is small in size and small in quantity in comparison with the large amount of leaves and runners. Most of the plant food is being used up in forming runners and leaves. If we wish fruit large in size and large in quantity we must plant improved varieties in rows at least three feet apart, and we must keep the space between the rows clean of weeds and runners. The strawberry is a perennial, but as the plants have been developed by cultivation and selection they tend to go back to their original habit of producing small berries. Therefore it is best to grow fruit only on young plants. The plants send out runners which take root and form new plants, and the best berries are on these new plants. The old plants soon become of little value. Therefore the beds must be renewed. If you examine the blossoms of many kinds or varieties of strawberries you will find that those of some are perfect, that Fig. 45. — A strawberi-y plant repro- ducing by a "runner." Fig. 46 — A perfect strawberry blossom having both pisti.s and stameiiS. Fig. 47. — An imperfect straw- berry blossom having pistils, but not stamens. is, they have both pistils and stamens (fig. 46) ; these will of themselves produce fruit. The blossoms of others, however, 100 AGRICULTURE. are imperfect, they have pistils but no stamens (fig. 47) ; these will not form fruit, unless pollen from perfect blossoms is brought to them by the wind or by insects. Some of the best producing varieties of strawberries have imperfect blossoms; they are pistillate varieties and if we wish them to produce good crops we must plant alongside of them some plants of varieties bearing perfect blossoms. This is very important and should be well understood. In some of the varieties of fruit trees also, the blossoms are either imperfect or else able to fertilize themselves only with difficulty, and the planting of varieties whose blossoms produce an abundance of pollen is of great help. Raspberries. — 'WTien you pull off a strawberry, part of the stem comes with it ; but when you pull off a raspberry, it comes away freely from the stem, leaving a pointed end. This is because the receptacle or end of the stem is the fleshy part of the strawberry, whereas the raspberry is a collection of soft fruits distinct from the receptacle. In the case of the straw- berry, we eat the end of the swollen stalk ; in the case of the raspberry, we eat a cluster of fruits like small cherries. The roots of raspberries are perennial and the canes are biennial. Thus, canes grow up one year, bear fruit the second year, and then die. Therefore, in pruning the bushes we cut away all the canes as soon as they are done fruiting, and save the new canes for next year's fruiting. The bushes are increased or propagated by suckers or by the tips. The suckers, which grow up from the roots, are removed by cutting away below the soil and then set out as new plants. The tips of the canes are bent over and buried in earth, when they take root. The red varieties are propagated by means of suckers or root cuttings ; the black-cup and purple cane varieties by the tips. THIi GARDEN. ig. 48. — A gooseberry, sliowiiig seeds, S, at- attached to skin at /'. Gooseberries.— Our garden varieties have been developed from natives of Europe and of Ameriea. I'ig. 48 shows a fruit cut across containing the seeds, which are fastened to the skin by little threads. The form is similar to that of a grape. New bushes or plants are produced by layers and cuttings. In layering, a branch is bent over, a little notch cut in the under side where it will be under ground, then bent down and covered with soil, leaving the tip above ground. After a little, roots will appear near the notch, and later on the branch may be cut from the bush and a new plant will thus be started. In using cuttings, good thrifty stems or branches about six inches long are cut in the fall or early in spring and set out with the top bud just above ground. These are covered for the winter. The next year they form good roots, and the following year may be set out in rows. To prevent suckers, the buds below ground are rubbed off. Seedlings of all the berries may be obtained by rubbing up the ripe fruits with sand to separate the seeds and pulp. The sandy seed is sown on the surface of a finely worked bed, well enriched with decayed manure. The soil is kept shaded and wet with a fine spray. The plants are afterwards pricked out in another bed with more room and allowed to fruit to test. Currants. — These are grown very much as we grow goose- berries. Most of our varieties belong to three classes : I. The Flowering Currant, which is grown as an ornamental shrub. Its sweet-scented yellow flowers appear early in the spring. The fruit is black and of decided flavor or taste. By Fig. 49 — Reproducing plants by layeriiig. A is branch bent over and buried, held down by stake />'. New shoots C start up, which are then cut off from parent plant at D. 102 AGRICULTURE. cultivation, it may be used in the future as a fruit producer. 2. The Black Currant, which came from Europe. The fruit is black, and has a peculiar odor. 3. The Red Currant, with berries red and white. Enemies of Garden Crops. — In connection with field crops we referred to the enemies under two heads — insects and diseases. These enemies are also to be found in the gar- den, and, as garden crops are relatively more valuable than field crops, they should be watched very closely. Many of the field insects will be found in the garden, especially the many small insects called by the general name "flies," which, of course, are quite different from our house flies. Then there are caterpillars of many sizes and colors, some of which closely resemble or "imitate" in color the plants on which they feed. A very common enemy 4s the cutworm. Frequent cultivation and the turning up of the soil will bring them to light. The birds will pick them up. Diseases are the second-class of enemies, which appear in so many forms, variously named rust, leaf blight, anthracnose, mildew. Strawberries, for example, are greatly injured in producing fruit because of leaf-blight. Spraying with sulphate of copper (Bordeaux mixture) before the fruit begins to enlarge will check it. In the diseases of currants, gooseberries, etc., the same may be used. Full instructions as to what to use and how to apply the various preventives may be got in the bulletins of the various Depart- ments of Agriculture. All that need be said here is that thrifty plants grown in well-tilled soil, kept clean from weeds and rubbish, and properly fertilized, are least likely to be attacked by disease. Earthworms. — These must not be confusea with cut- worms, wireworms, and other insects that d,estroy crops. Earthworms play a very important part in working over soil and in pr®ducing fine mold. Their effect may be noticed especialJy in lawns. They come to the surface at night and after rains, bringing up soil from beneath. THK APPLE ORCHARD. 103 CHAPTER XXI. Section of a fully formed A, seeds in seed- 1 ox or core, ;he calyx end ; r, the pulp. THE APPLE ORCHARD. The Apple. — Let us take a fair-sized apple of good shape, cut it through as shown in fig. 50. We see that the stem is con- nected with the core, and beyond a-, it at C are the small ends of what appear to be leaves. These are the ends of the calyx leaves. The core is the seed box ; it is made up of hard, tough, fibrous ma- ^'S- ^so- terial, E, in which are the seeds, -^; c, ^. If you cut another apple across the core you see the five seed boxes. The apple, then, is firmly attached to the branches by the stem which is closely con- nected with the core. The part T, outside of the core, is made r .1 1 J i. J xi Vif^- 51. Section of an apple blossom, up of the enlarged stem and the showing how the apple begins to form. lower and thicker portion of the calyx leaves which have closed over the seed forming portion of the blossom (the ovary), and have become thick and juicy. What we eat, then, is really the leaf portion of the blossom, united with the swollen stem. Cut a thin slice across the apple and hold it up to the light— you will observe five parts somewhat resem- bling the blossom of the apple. Frequently the five tips of the leaves at C arc easily observed. The relation of the apple to the blossom is now known. 104 AGRICULTURE. Seedlings. — If we plant some apple seeds, plants will spring up that, after a few years, will become trees and bear fruit. These trees are known as *' seedlings." But, what at first appears strange, they are not likely to bear apples similar to the apple from which we took the seeds ; in fact, the apples may be of little use. And why so ? Because the apple, in its wild or native form, has a small, rather poor fruit, and the many varieties have been produced by careful cultivation and selection. In this way varieties are obtained that are different in their hardiness and different in shape, size, color, and flavor. As is the case with other plants, while we develop them for producing fine fruit they frequently become more tender in stem and roots, and, therefore, the nurseryman has to use great skill in producing plants that are both hardy and productive of good fruit. If we grow apples from seeds only, the hardy seedlings will grow to a producing age. In this way we can obtain trees with hardy roots, stems, and buds. If, now, we can use these roots and stems for our trees, and at the same time cause them to produce highly-flavored fruit, we shall get trees such as we desire. This may be done by grafting. Grafting. — The hardy stem and root is called the siock. The part to be grafted on to the stock is called a scion. The nurseryman selects the young seedlings and cuts small branches as scions from the trees of improved varieties such as he wishes to produce. The scions are cut in the late fall after the leaves have fallen, or in early spring before the buds start to open. At that time the branch is dormant or asleep. The grafting is done, as root-grafting or as top-grafting, before the growth starts in the spring. In root-grafting, the stock and scion may be cut across as shown in Fig. 52. This is called whip or tongue-grafting, and is the method of cutting when both are of same size. When the stock is large and the scion small, the latter is cut wedge-shaped, and the former is split so as to take in the little wedge end, as in Fig. 53. The scion is THE APPLE ORCHARD. 105 placed in the stock and the cuts are all covered with grafting wax, which is composed of a mixture of tallow or linseed oil, Fig. 52. — Whip or tongue-graft- ing on root. Used also in the case of small stocks. Fig. 53.— Grafting in cleft or split limb. Used in the case of large limbs. In very large limbs two scions are inserted on opposite sides i,f the c.eft. beeswax, and resin (about i, 2, 4 parts by weight of each in order named). A very important point is to have the layer just underneath the bark (the cambrium layer) of both stock and scion exactly opposite or against each other. Wliy is this important? We know that the outer bark is deadwood and is constantly becoming rough, cracking, and falling off. The living part of a trunk or branch lies between the sapwood and the bark ; it is the thin layer of moist woody fibre just under- neath the bark. If we bring the living layer of the stock and the living layer of the scion together, the sap from the one will flow into the other, an^ the root and stem will continue to nourish the new branch, just as it was nourished on its original tree. In this way w^e have a hardy root and a new branch that will produce fine fruit, since the nature of the fruit depends upon the kind of branch and only in small part upon the root that draws nourishment from the soil. Io6 AGRICULTURE. Pruning. — The food taken in through the roots and leaves goes to the making of wood, leaves, and fruit. The leaves and new branches are formed before the fruit, so that, if the tree is inclined to become very branchy, most of the food may be used up in producing new wood, and very little will be left for fruit. Therefore, in many varieties, pruning is very important. The proper time is to begin with the tree as soon as set out, and to prevent the growth of too many limbs by cutting off limbs when small shoots and by rubbing off buds that are not required. Limbs growing too long may be "stopped," that is, pinched off at the end. The thinning out of fruit, will, for the same reason, have the effect of producing larger fruit. Feeding the Trees. — Three crops are produced yearly in the orchard — new leaves, new branches, new fruit. The leaves fall and most of them are blown away ; the limbs grow and some are cut away in pruning ; the fruit is picked and taken away. What do the trees need ? In the first place it is abso- lutely necessary to have the land drained so that the roots can go deep into the soil. Then the surface soil must be kept well cultivated about the young trees, that the moisture may be saved and the air get into the soil. But in addition food must be supplied, not merely to the young tree, but also to the old tree as long as it is expected to bear a crop. Wood ashes are the mineral or soil matter of the trunks and branches of trees, therefore we may conclude that wood ashes are an excellent food for fruit trees of all kinds. Wood ashes contain lime, potash and some phosphates. If any other manures are applied they should be such as fine bones, which contain phosphates and lime Potash and phosphate manures are the proper food for vines and trees producing fruit. We must remember that the roots extend out on all sides about as far as the branches, and the young fibrous roots are the feeders. Therefore the proper place to apply such is, not close around the trunk, but on or just under the surface out towards the end of the branches. OTHER ORCHARD TREES. I07 CHAPTER XXII. OTHER ORCHARD TREES. The Pear. — We have already stated that the apple, the pear, and the quince belong to the rose family. The form of their fruit with seed in a hard box or core shows their resem- blance. Our different varieties of pears have all been derived from the common pear of Europe by cultivation and selection. These fruits all change somewhat with soil, climate, and treat- ment. According to the size of the tree we class pears as "standards" and "dwarfs." The standards are formed by grafting or budding from the improved varieties on to seedlings as stocks. The pear trees that are purchased for an orchard are therefore first grown from pear seed and then grafted or budded. Transplanting in the nursery induces a greater growth of fibrous roots than if the trees were kept growing in one place. So that better results are sure to follow from getting trees that have been well cared for, even if t'hey cost more money. When trees are transplanted some of the top is pruned off and the trees are cut back. Why? In transplanting some of the roots are likely to be damaged, and all are not likely to start work at once ; therefore the old top would be too large in proportion to the amount of feeding roots. The dwarf pear trees are produced by budding on the quince as a stock. The quince will not take the buds of all varieties of pears, so that it is sometimes necessary to "double work " them. This is done by budding on the quince with any pear bud that will take, and then afterwards budding on this pear stock with the buds of the varieties desired. io8 AGRICULTURE. Budding is a means of increasing very many kinds of fruits. We have, under the apple, referred to the fact that the Hving part of the tree is on the outside, just under the rough bark. If a Hving bud is taken from one tree, by neatly cutting it out with a little of the wood beneath, it may be made to grow if at once placed in con- tact with the similar living part of another tree. This is done by making a slit up and down and one across the bark, T-shaped. This cut is opened and the bud placed in and the bark lapped over it. The cut and bud in place are then Fig. 54. Budding. Carefully tied up. It will be seen that budding must be done when the bark is loose or will slip, that is in midsummer. In the following spring the old growth above the bud must be cut off, and buds are rub- bed off below so as to send all the sap into the new branch. The Plum. — We now come to the stone-fruits — the plum, the peach, and the cherry. They differ from the pear and apple group, but they belong to the large rose family. Exam- ine their blossoms. We have in America several wild varieties of plums, from which some of our hardier varieties are derived. From the European plum come our highly flavoured plums. As a rule they are not so hardy as the natives. A third class of plums is derived from Japanese varieties. The plum is propagated by budding and grafting. For northern climates the stock used should be seedlings or the native wild plum. In milder climates the peach is used quite extensively as a stock. The Peach tree is not known here in a wild state ; it has come from Asia and is closely related to the almond. OTHER ORCHARD TREES. I09 The nectarine is ciuite similar with fruit of a smooth skin. Observe the blossom as to shape and color. In some vari- eties the stone clings to the pulp ; in others it separates readily — hence the terms " cling-stone " and "free-stone." The peach ripens only in a mild climate and requires a warm soil, that is, a light soil that readily drains and absorbs heat. As the peach trees mature or come into blossom earlier than apples, they are sometimes set out in young apple orchards. A few crops of peaches can thus be picked '^' ^^' '°"^ '^""' ^ ^^^^ ' before the apples come into bearing. When the apple trees become nearly full grown and begin to bear fair crops the peach trees are removed. The peach trees are increased by budding on stocks of seedling peaches or on plums. Why would you expect peach buds to take on plums and not on pears or apples ? What is the edible part of the peach ? The true fruit or seed is inside of the stone. Crack one open and compare with an almond nut. You may taste it, but do not eat it. If you take a thick leaf you can peel off the skin on the upper side and also the skin on the under side. Between these two is the soft cell matter. The calyx leaves fold over the inner part of the blossom, enclosing the seed, the inner side of the leaves hardening to form the stone, and the outer part forming the skin ; the soft material between forms the part of the peach that we eat. The Cherry. — This tree is sometimes grown as an orna- mental tree ; sometimes for its wood, which has a beautiful grain and takes a fine polish ; but generally for its fruit. There are very many varieties of cherries growing w^ild in America known by various names— dwarf cherry, bird cheiry, choke cherry, wild red cherry, etc. Most of our garden varieties are derived from two European varieties. AGRICULTURE. CHAPTER XXIII INSECTS OF THE ORCHARD. The Borer. — This is a beetle that does much damage to the trunks of trees. It is about half an inch long, of a shining greenish-black color. It lays its eggs in summer in the rough bark near the ground or near the crotches of large limbs. From these eggs come the larvae, which, when full-grown, are nearly an inch long. As soon as hatched they begin to bore into the tree, where they remain one or two years. From the larva state they pass into the pupa state, and from this the beetle again comes forth. If many of these bore through the under bark and into the living wood they must injure a tree just as if it were girdled. What is to be done? We can dig out the borers and kill them, but already much damage will have been done. We can keep the rough bark scraped off with a dull hoe, so that there will be no convenient cracks and holes in which to place the eggs. We can also give the trunks of the trees a good coat- ing of whale oil-soap, then soft soap or whitewash in the spring and early summer. As the bark of young trees is soft and the young trees are most easily injured we should look out for borers in young orchards. The Ovster-Shell Bark Louse — On the bark of the apple tree are frequently seen little patches that appear like Fig. 56. — The flat-headed borer — a the larva, b the pupa, d the perfect beetle. It injures many kinds of trees. INSECTS OF THE ORCHARD. Ill rough bark. If you pry them up with your penknife you find F'g 57- — I^ark covered with larva; of oystcr-bhell bark lice. that they are not rough bark, but scales. What are these little scales or shells ? As the weather becomes warmer little white insects come out from under these shells, and for a couple of days the birk swarms with life. Then they settle down, get their tiny beaks into the soft bark, and suck the sap of the tree. At the end of summer we find the scales with a nest of eggs underneath. Protected by the scale, the eggs remain until next summer, when out again come the tiny insects to live upon the sap of the tree. The Aphis. — These are to be found on all of our fruit trees. They are noticed as green bugs less than one-tenth of an inch long. They suck the sap out of the leaves and green bark, and are sometimes found on the roots. The eggs are laid in the fall in the cracks of the bark, and in the next summer we are surprised at the large number of green wingless lice that appear as if by magic and do so much damage in a short time (see page 83), Keep the bark clean and spray the trees in the spring, as soon as the insects appear, with kerosene emulsion, a diluted mixture of soft-soap and coal-oil. We have stated before, page 79, that lady-beetles are very destructive to plant lice. Different kinds of plant lice are found on the apple, cherry, peach, currant, cabbage, strawberry roots and in grain. Since they increase so very rapidly, spraying should be done as soon as the lice appear. House plants may be washed with whale- oil soap or tobacco water. 112 AGRICULTURE. Caterpillars. — We already kifow that there are many kinds of caterpillars, and that they are larvae hatched from Fig. 58. The tent caterpillar, a and h are caterpillars on the web, c is a mass of ea: "s, d is the cocoon contain- ing the chrysalis or pupa. The female moth is above. the eggs of moths and butterflies. Tent caterpillars live in nests and strip the trees of their leaves. Any nests seen on the trees or bushes should be carefully removed and burned whenever observed. These caterpillars come out of their nests INSECTS OF THE ORCHARD. 113 two or three times a day to feed, ^riierefore we should be care- ful to see that they are all at home before the nests are re- moved. Spraying with Paris green will help to destroy all leaf- eating caterpillars. The Codling Moth. — Codling is an old word for a cook- ing apple. We know what a moth is (see pages 77 and 78). We have seen aii apple with a dark worm hole in it, and we have cut the apple open and have found the little white worm inside. Now for its history. In our illustration, fig. 59, ^ is the moth about half an inch across the wings. The fore wings are grey, the hind wings light brown. As moths fly at night we are, perhaps, not so well acquainted • with it as with the white larva. The female moth lays her eggs upon the little apple as it stands up-right. The larv^ that hatch, usually enter at the blossom end, and bore to the core and feed upon it. Since the core is a continua- tion of the stem, the latter weakens and the wormy apples are the first to fall. After a while the larva eats its way ou' and falls to the ground. Generally it crawls to the trunk of the tree and after a little spins a cocoon from which in about two weeks the moth appears and begins the laying o( eggs. Many of the larvre of this second brood are taken to the cellar in the apples. To destroy them is important. All wormy windfalls should be gathered up at once and fed to the Fig. 59. — The codling moth, a is the bur- row ; fi, the entrance hole ; e, the 1,-irva ; li, the pupa ; /J moth at rest ; ^, moth with wings spread ; /;, head of larva ; i, cocoon containing pupa. 114 AGRICULTURE. pigs. The trees are sprayed with Paris green while the tiny apples are still turned upwards. If we spray the trees earlier for other insects we must be careful not to spray while in full bloom, since then we may poison the bees that are gathering honey and helping to fertilize the blossoms by carrying pollen from one blossom to another. Further, we may injure the blossoms and at that time the codling moth has not yet laid her eggs. The Pear Tree Slug. — The perfect insect is a very black saw-fly, with four wings of the form shown in fig. 36. The female is about one-fifth of an inch long, the male a little shorter. Points to be noted are the nature of the wings and the color of the legs. Little cuts are made Fig. 60.— The pear tree slug. in the leaf in which. the eggs are laid about June. From these the slugs are hatched, which are from one-half to two-thirds of an inch long, slimy, dark green in color. At once they begin to eat the leaves. The slugs change their skins four or five times, and in about a month they crawl or fall to the ground and change to the pupa state. After two weeks more these change to flies, which are ready to lay eggs to hatch a second brood early in August. After doing damage a second time the larvae enter the ground for the winter. In the spring the flies appear, again ready for destruction. The slugs are to be looked for on pear and on cherry trees in June and again in August. The Plum Curculio. — The perfect insect is known as a weevil or snout beetle. It is dark in color, and about one- fifth of an inch in length. During winter it remains hidden under rubbish. It comes out in the spring and does great damage as the young fruit is setting. It punches a little hole in the fruit with its snout, lays an egg, and then makes INSECTS OF THK ORCHARD. 115 a moon-shaped cut in the skin near the hole. If this cut were not made, what would ha])pen to the young larva as the fruit grew in size ? One beetle will lay from fifty to 1 00 eggs. A sort of gum forms around the hole. The stem of the fruit soon weakens, and it drops to the ground with the larva in it. The larva then comes out and burrows into the ground. In about a month the full-grown beetle appears. Some fight the CUrCUlio by jarring the trees Fig. 61.— The plum-tree curculio. a, the larva; />, the pu;ia : c, the heetle; d, day after day, early or late, curculio, natural size, on young plum. catching the insects in a sheet, and then throwing them into water covered with kerosene. Paris green is used in spraying. It is applied several times after the blossoms have fallen. Other Insects. — New insects are constantly appearing, being brought in from other countries in fruit and nursery stock. ^Vhen first introduced, these insects increase very rapidly, since their natural enemies are not always brought with them at the same time. Sometimes they come later on. Fig. 62. — Bud moth. The larva feeds upon young buds of fruit trees. Fig. 63.— Canker worm. a. b, and c are eggs ; i- is a mass of eggs ; J is larva dark brown in color. Larvi: can drop from tree by silk thread. They attack apple, plum, and cherry trees. Il6 AGRICULTURE. CHAPTER XXIV. DISEASES OF THE ORCHARD. "An ounce of prevention is worth a pound of cure." Forms of Disease. — The leaves and green twigs of all the orchard trees are affected by diseases which are variously named leaf blight, leaf curl, yellows, etc. On the branches of plums and cherries we have black-knot. On the fruit we have diseases called the spot, the scab, rust, etc. We know that diseased fruit, such as spotted apples, is, as a rule, stunted in size and distorted in shape, and is not so salable as well-formed, clean fruit. Diseased fruit, also, will not keep so long as perfect fruit. We do not, perhaps, realize that trees whose roots, branches, or leaves are affected with disease will not produce as large crops as perfectly sound trees. It is e.specially important that the leaves be kept clean and thrifty. Prevention of Disease. — The first thing to be noted is that all old fruit trees or bushes that are not bearing good crops should be destroyed. When a tree becomes unfruitful it will be neglected and then diseases as well as insects will find a home in it. Even if at some distance from other trees, all such should be cut down and Ijurned, since the spores of these diseases are very light and are carried long distances by the wind and by insects. In the case of black-knot upon plums or cherries, there is only one course to follow -cut it off and burn it. It will not do simply to cut it off and throw it on the waste heap ; the spo.es will ripen there and spread to the other trees. If affected twigs and limbs are cut off as soon as the first signs of disease appear, we shall do much to stop the spread of the disease. It may even be found to pay to cut DISEASES OF THE ORCMAkO. 117 down a whole tree, since it may save the entire orcluird. V/e must consider every one of these httle knots, spots, or bhghts as breeders and spreaders of disease. If a tree was diseased last year the spores will be left upon the branches and on the trunk. By spraying before the buds Fig. 65. — Section of a diseased plum leaf, spores bein T thrown off. a Spores very much enlarged- See Figs. 42 and 43. Fig. 64. — Disease in a plum leaf. open we prevent the spread of the early growing spores. The spraying must be repeated several times, as various diseases start to grow at different times. As a rule the best fruit- rowers combine their spraying for insects and for diseases — thus they make a mixture of bluestone and of Paris green, the former to kill the disease spores, and the latter to poison some of the insects. One warning must be repeated, that is, not to spray with poison while any tree is in full bloom, since at that time the blossoms may be injured, and insects, such as bees, may be killed that are carrying pollen from the stamens to the pistils, thereby assisting in the fertilization of the blossoms. :i8 AGRICULTURE. CHAPTER XXV. THE VINEYARD. The Vine Family. — The Virginia Creeper and the different varieties of the grape vine together form what is known as the vine family (viiacets). These are woody plants climbing by tendrils. The leaves are set one after another (alternate). The flowers are small, greenish, in a cluster or bunch. The tendrils and flowers are opposite the leaves. The Virginia creeper has its leaflets in fives, and is thereby distinguished from poison ivy, which has its leaflets in threes. A bunch of blossoms like that of the Virginia creeper is called a cy?ne, that like the grape is called a thyrsus. Notice the form of the tendrils of the V. creeper and how they attach themselves to wires and flat surfaces. Are those of the grape similar ? Varieties of Grapes. — The grapes grown under glass or in hot-houses in this country are quite different from those grown out of doors. They are of different flavor, and the former are thinner in the skin. Our hot-house grapes are European varieties. In the woods we find several varieties of grapes growing wild, with long climbing branches, bearing bunches of small fruit quite sour or acid. The principal wild varieties are known as the Northern Fox, the Summer grape, the white or frost grape, and the Muscadine or Southern Fox. Our out-of-door cultivated varieties have been got by selections from these wild varieties, also by crossing them with the Euro- pean, and by chance seedlings fiom all varieties. Most of our edible grapes have been got from crosses on the Northern Fox, and most of our wine grapes from crosses on the frost grape. THE VINEYARD; II9 Treatment of Vines. — The soil for planting should be deep, rich, and thoroughly drained. Two-year-old vines should be set out, and after the first year only mineral fertilizers, such as ashes and bones, should be applied unless the soil is poor. If the winters are severe the vines are laid down in the fall and covered. One of the most important points in connec- tion with grape growing is the pruning. If left alone the vine will naturally produce an abundance of stem, branches, and leaves. If properly pruned the food taken in by the roots and the leaves goes to the formation of fruit. The vines may be trellised in various ways, depending upon the climate. In mild climates where the vines are left up all winter they may be trained high and spread up fan-shaped. In colder regions one of the best methods is to lead one branch to the right and another to the left about a foot above the ground, and then train branches from these up across the wires. When pruned off in the fall, they can be easily laid down and cov- ered. The method of pruning is easily learned from practice with an expert. The method depends upon this rule : " The fruit forms upon shoots that grow this year from eyes that were formed on the wood that grew last year." All branches growing too long should be pinched at the end or " stopped," so as to cause hardy wood to form. Grape-vines are increased in number by cuttings, layering, and grafting. The cuttings are made of the last season's growth, and are buried two buds deep in the ground. In lay- ering, a branch is turned down and buried, when it takes root. In grafting the method is somewhat similar to that of tree grafting, but the scion is inserted close to or below the surface of the ground. We have stated before that many of our best varieties are crosses of the fox grape. To understand this we must examine the blossom of the vine. The blossoms are small and some- what difficult to study. They are of peculiar shape. The 126 AGRICULTURE. petals of the blossoms form a sort of cap which covers the pistils and stamens. As the flowers begin to open, the petals loosen below but remain connected above. In this they differ from the blossoms of the Virginia creeper. When these petals begin to open the pollen flies off from the stamens and falls upon the pistils, and then, if the pistils are ready for it, the fruit will begin to form. In some of the varieties, either the pollen is not well formed and distributed, or the pistils are not ready for it, and then fruit does not form. As a consequence we see bunches of small, imperfect fruit. When such varieties are grown alone little fruit may be expected. What i-; the grape tliat we eat? We throw away the seeds and skin and eat the pulp. Cut a grape across and observe its structure. Cut another lengthwise 5o as to get a thin section ; hold this up to the light and observe how the seeds are placed and how they aie attached to the skin near the one end. What are raisins ? Insect Enemies of the Grape. — Among the insects is Fig. 66 -The jirape-vine flea-beetle ; a a leaf being eaten by laiva:, (• the larva, d the beetle. THE VINEYARD. the grape-vine flea-beetle which lays its eggs on the underside of the leaves. Small brownish larvse are hatched, which eat the leaves, then drop to the ground and change to the pupa form, from which in about three weeks the perfect beetle emerges. The beetles may be collected by hand, and the vines dusted with powder or sprayed. We also give here one of the leal-rollers which are found on so many vines and trees. Fig. 67. — The grape-vine leaf-roller ; i the larva, rolling up a leaf, 2 front part of larva (enlarged), 3 the pupa, 4 the male moth, 5 the female moth. This grape-vine leaf-roller eats the leaves. The adult is a dark- colored moth with two white spots on each of the two hind wings. The larva rolls up a leaf and stitches it together, as shown in figure 67. The principal diseases of the grape are mildew and black rot, which are prevented by spraying. 122 AGRICULTURE. PART V, CHAPTER XXVI. HORSES. Origin of Horses — These animals are not natives of America. The Indians had no horses before the white-man came — they went afoot or by canoe. The wild horses of America are the offspring of escaped animals. Geologists have found traces of small animals, supposed to be the ances- tors of the horse, in some parts of America, but these had all disappeared long before Europeans arrived four centuries ago. Horses, as we know them, were originally used in warfare. At present we have many kinds of horses, but all have doubtless come from the same stock or kind. When the wild animal was first tamed or domesticated, we do not know. Climate and food, which varied in different countries, and the uses to which horses were put, gradually produced some changes in form and appearance. Animals that showed the qualities desired — such as size, color, form, strength, and fleetness — were care- fully treated, and thus there w^ere developed in different countries horses of different breeds. Some desired horses for heavy work, animals of heavy body, stout limbs, and strong muscles. Others desired horses for speed, animals of lighter frame, smaller bone, and sound lungs. Kinds of Horses. — Two classes of horses have resulted. We shall mention here only four breeds of each class. These have become fixed or definite in their characteristics. The HORSES. 123 only way in which to become familiar with these different breeds is by observing the living animals. Heavy horses : 1. The Clydesdale, from the valley of the Clyde in Scotland. 2. The Shire, of the East-central shires of England. 3. The Suffolk Punch, from the Eastern counties of England. 4. The Percheron or Norman, of Northern France. Light horses : 1. The Hackney, of Yorkshire and Eastern England. 2. The Cleveland Bay, from Yorkshire, England. 3. The Standard-bred, of the United States, a trotter. 4. The Thoroughbred, or running horse of England. The Legs and Feet. — These are of most importance in a horse — "no foot, no horse" is true of it as of no other animal. The feet are constantly striking upon hard earth or stone. Why can a horse bear the strain of so much hard pounding upon its feet and legs ? The parts are being con- stantly reformed; life is repairing them all the time. The dif- ferent parts are put together with what we may call cushions. Then the parts of the hind legs are not joined in a straight line, and the front legs are not straight as the feet strike the ground. Step from a chair, keeping the leg stepped on perfectly stiff. Notice how the jar goes straight up through the knee to the body. When we jump we bend the knees. Shoeing the Horse.- But the shape of the legs and the bending of the knees do not save the hoof from all wear and tear. If the shank and foot of a dead horse can be got, it will be an interesting study to take it apart and see the arrangement of the different parts. The wall of the hoof is what we see as the foot stands on the ground. It consists of toe, quarters, and heel. The wall turns in at the heel, forming the bars. Within the bars is the frog. Of what use is the frog ? Should it be much cut down in shoeing ? The varnish 124 AGRICULTURE. Fig. 68. The External Parts of the Horse. I. Face. 24. Forearm. a. Forehead. 25- Knee. 3. Ears. 26. Canon or shank. 4. Muzzle. 27- Fetlock joint. 5. Cheek or fowl. 28. Pastern. 6. Poll. 29. Coronet. 7. Throat. 3°- Foot. 8. Aarotid. 31- Ergot and fetlock. Q. Neck. 32- Haunch. 10. Crest. 33- Thigh. II. Jugular Channel or Furrow. 34- Stifle. 12. P.reast. 35- Buttock. 13. Withers. 36. Leg. 14. Pack. 37- Hock. 15. Ribs. 38. Canon or shank. 16. Girth. 39- Fetlock joint. 17. Loins. 40. Ergot and fetlock 18. Croup. 41. Pastern. 19. Dock. 42. Coronet. 20. Flank. 43- Foot. 21. Belly. 44. Lower thigh. 22. Point of shoulder. 45- Point of hock. 23. Elbow. HORSES. 125 on the hoof is formed by nature to keep the water out on damp ground, and to keep the hoof from drying up and cracking on dry ground. Should the blacksmith rasp off this varnish if it is the natural protection to keep the hoof sound ? Great care must be taken in shoeing young horses while their hoofs are growing larger. On sod, turf, or dirt, it would not be necessary for a horse to be shod, as the hoof is hard, and formed by nature for running over the natural soil and grass. But we cause the horses to work on hard stone roads and pavements, and therefore we fit them with shoes that are harder than their natural hoofs. The hoof is of the same material as our finger-nails — we may call the hoof a large, thick toe-nail. The foot is the middle toe, the other four having disappeared. We can cut and pare the hoof and drive nails into it, therefore, without caus- ing any pain. If we cut the nail- too deeply, we come to a very sensitive part of the finger. So with the hoof; under it and within it is a very sensitive part of the foot. It we cut into it or drive nails into it, we cause great pain to the horse, and lameness and suffering follow. The horse, therefore, should always be shod by a good farrier or shoer. When you walk on your toes, or in a pair of boots too high in the heel or too tight, you soon tire out. If good shoes of proper form and weight are so important to us in walking, the proper fitting of shoes of the right weight and size is quite as important to the horse. This is another reason for always having the work done by a good workman. Fig 69 — The horse's foot : A is the pastern, B the lower pastern, C the navicular, and D the coffin bone ; E is the wall of the hoof, to which the shoe is nailed. 126 AGRICULTURE. Food of Horses. — The horse has a small stomach, and does heavy work, therefore we must remember that strong food and pure water should be given in moderate quantities, and at frequent intervals. The stomach when empty weighs from three to four pounds, and it will hold three to three and a half gallons. Horses are not built for coarse, bulky fodder. Nature and experience prove that such food as good hay and oats are well adapted to horses that have to work hard either in driving or in drawing. Overfeeding of ourselves makes us heavy and lazy, and causes indigestion. We should be careful to give the horse just enough to eat for its needs, and no more. Care of Horses.— Grooming to a horse is the same as washing to ourselves — it keeps the pores of the skin clean and gives a good appearance to the horse. Since it does all of its work on its feet, the health of the feet and legs is of the greatest importance ; therefore great care is taken in providing a proper floor for the stable. We do not rest or sleep well in a foul atmosphere ; the horse stable should be kept clean and neat. We do not rest well on too hard a bed, neither does the horse. We do not thrive well when exposed to cold winds or heavy rains, neither does a horse. When we come in from hard work and are in a perspiration, we do not sit or stand in a draught ; the horse is just as likely to catch cold. What is meant by the height of a horse ? In what terms is it stated ? When a horse walks, in what order does it lift its feet ? Describe the actions of the feet and legs in trotting, pacing, cantering, and in galloping. When a horse rises, which feet are raised first? Why does sitting on a horse's head prevent its rising ? Would such action prevent a cow ? Is it natural for a horse to reach up and pull down its food, such as dusty h\y ? CATTLE. 127 CHAPTER XXVII. CATTLE. Breeds of Cattle. — Cattle formerly included all the live stock of the farm ; we now apply the term only to bovine cattle or neat cattle. They are descended from wild animals, some of which are still found in the wild condition. As horses were at first used for warfare, cattle were largely used for work. We have now two uses for cattle — producing beef and producing milk. There are very many different breeds in these two classes, but we may give the four leading breeds of each class in this country as follows : Beef breeds : 1. The Shorthorn, or Durham, originated in Durham County, England, over 100 years ago from Teeswater cattle. There are some dairy families also among shorthorns. 2. The Hereford, originated in Herefordshire, England, over 150 years ago. 3. The Galloway, a breed of black polled cattle or "doddies," from Southern Scotland. 4. The Aberdeen-Angus, from Aberdeenshire, Scotland. Dairy breeds : 1. The Jersey, from the Island of Jeisey. 2. The Guernsey, from the Island of Guernsey. 3. The Ayrshire, from Ayrshire, Scotland. 4. The Holstein, or Holstein-Friesian, from Scotland. In figure 70 we give the outlines of a beef animal. We shall now refer to a few of these parts. 128 AGRICULTURE. Fig. 70.— The External Parts 1. Mouth. 17. Shoulder Point. 2. Nostrils. 18. Shoulder Vein. 3. Lips. 19. Elbows. 4. Muzzle. 20. Arm. 5. Face. 21. Knees. 6 Eyes. 22. Shanks. 7. Cheeks. 23. Hoofs. 8. Jaws. 24. Crops. g. Forehead. 25. Fore Flank. 10. Poll. 26. Fore Ribs. 11. Horns. 27. Mid Ribs. 12. Ears. 28. Hinder Ribs. 13. Neck. 29. Barrel. 14. Throat. 30. Belly. 15. Dewlap. 31. Spine. 16. Shoulders. 32. Flank. OF A Beef Animal. 33. Plates. 34. Rumps. 35. Hips. 36. Thighs. 37. Hocks. 38. Hind Leg. 39. Brisket. 40. Bosom. 41. Chest. 42. Loin. 43. Hooks. 44. Purse. 45. Twist. 46. Pin Bones. 47. Tail Head. 48. Tail. CATTLE. 129 Horns and Hoofs. — The horns of cattle were intended by nature for defence. In the domestic animal they are not required, hence breeders have aimed at reducing or removing them. The " Longhorn " breed was once a favorite ; it has given place to the "Shorthorn." In some breeds the horns have disappeared. These are called " polled " cattle, as the Polled-Angus and the Red Polls. The bone of an animal is largely made up of mineral matter (phosphate of lime), with some oily and gluey substances. Horns and hoofs are quite different from and independent of the bones. When burned, a piece of horn or of hoof will give off a very disagreeable odor. So will hair. The horns, hoofs, and hair are all nitro- genous in their nature. Since the horn is closely connected with a very sensitive part of the animal's head, when dehorning is practised, the horn should be cut off quickly and neatly. The horse's hoof is in one piece ; the feet of cattle are cloven. Is there any advantage to the cattle in this ? Which kind of foot is better adapted to climbing, and which to level travel ? Do all cloven-footed animals chew the cud ? The Mouth. — When full-grown, we have three kinds of teeth. The front teeth are for biting, and are called the incisors ; the back teeth are broad and double-rooted, formed for grinding, known as the violars ; between these are longer teeth called the canines. If you examine the teeth of an ox, you find no upper incisors and no canines. There are eight lower incisors, and six upper and six lower molars on each side, making thirty-two in all, as follows : T ■ o ^ . 0-0 T., , 6-6 incisors - Canines — • Molars — - 8 0-0 6-6 This arrangement applies to cattle, sheep, goats, and deer, though sometimes canines occur. How would you represent, as above, the teeth of a boy and of a full-grown man ? How those of a horse ? The molars of a horse are larger and broader than those of a cow. A horse bites the grass with the incisors, 1^0 AGRICULTURC. and by a nod of the head cuts it away. A cow wraps her tongue around the long, coarse grass, pulls it into her mouth, closes the incisors and upper gum upon it, and by a movement of the head tears it away. The horse is therefore able to take the fine grass, and to crop the pasture more closely than the cow. The Stomach. — Sheep and cattle are ruminants — they chew the cud. See Fig. 71. a represents the gullet connecting the stomach and mouth through which the food passes into the stomach, and / the beginning of the intestine through which the food passes out of the stomach. There are four sacs all joined ; b is the first or largest stomach (the rumen, or paunch); c is the second (reticulum) ; d the third (omasum) ; e the fourth (abomasum). When a cow takes in coarse food, it passes into the first or largest stomach until the cow is done eating. Then the cow stops taking in food and begins to digest it. Fig. 71 -The four stomachs of a cow. After soaking or Steeping some time in the large stomach, it gradually comes back through the gullet to the mouth, to be chewed over and over until it becomes more liquid-like. Then it flows back and passes right on into the smaller stomachs, and thence into the intestines. If liquid food is taken, as in the case of calves, the food passes right on into the third and fourth stomachs. The four stomachs of the cow therefore enable her to take in a large quantity of food, and to digest very coarse fodder. The chewing of the cud enables her to do without the complete set of teeth so neces- sary in the case of horses. The single stomach of a horse holds about 3 gallons, the four stomachs of a cow from 60 to 70 gallons. cattle:. «3i Dairy Cattle. — Figure 72 shows the general form of a good dairy cow, an animal in which the end desired is to give as large an amount as possible of rich milk at the least cost for food. Contrast the outlines of this animal with the one shown in figure 70. As a rule, the large dairy herds are com- mtiit/,. '""* ; , Fig. 72. — Parts of a model dairy cow. posed of grade cows ; these are the offspring of pure-bred sires and common dams. There is an old saying, "The sire is half the herd." This is illustrated in the following table of the offspring of a pure-bred sire and of a common (scrub) sire ; Pure-bred sire. Common cows or dams. 1. Grades, one-half pure. 2. Three-quarters pure. 3. Seven-eighths pure. Common (scrub) sire. Pure-bred cows or dams. 1. Grades, one-half pure. 2. One-quarter pure. 3. One-eighth pure (scrub). This statement means that in the first case we start with a herd of common cows and a pure-bred sire. The first genera- tion of calves will all be grades, one-half pure-bred. The calves of these and the pure-bred sire will all be three-quarters pure-bred, and their calves will be seven-eighths pure-bred. 132 AGRICULTURE. If, however, we were to start a herd with pure-bred cows and a common sire, the third race or generation would be only one- eighth pure-bred. The continued use of a pure-bred sire will in a few years bring the herd to the level of the sire. Beef. — As we have got most of our farm animals from the British Isles, the names applied to them have come from the same source. The living animals we call oxen, cows, calves, sheep, swine, but the meat from these same animals we call beef, veal, mutton, pork. Why these two sets of names ? In early times the living animals were tended by the Saxon hind, and the meat was eaten by the Norman lord or baron. Thus the names for the living animals are Saxon names, and the names for the meats are Norman. But what is the meat ? It is made up of fat and lean meat. The lean meat is of the same composition as muscle ; in fact, it is fine, tender, muscle fibre. Now we can easily understand why the differ- ent parts of a quarter of beef are not equally valuable. In some parts the fibre Mouse is coarser, more like muscle as we gener- ally know it. We can understand why the neck is tough, and why the meat of the hind quarter, for instance, is tougher the smaller or lower part or shank. In finding the tenderest cut of the carcass, we look for that place where there is plenty of flesh and little work to be done, that is, where the muscles are least developed by hard work ; this, by reference to Fig. 73, we locate between parts 5 and 8. f 'g- 73- — ^ Side of Beef. . Leg. 2. Round. 3 buttock 4 Veiny piece. 5. Sirloin. 6. Rump. 7. Thickflank. 8. Porterhouse (including tenderloin). 9. Thin flank. lo. Forerib II. l?risket 12. Middle rib 13. Shoulder. rib. 15 Shin 17. Neck, or sticking-piece . Silks'" towards ID. Clod. SHEEP. 133 CHAPTER XXVIII. SHEEP. "The foot of the Sheep bringeth weaUh." Nature of Sheep. —Our domestic sheep are so harmless that we are not at first thought Hkcly to see in them the descendants of wild animals. Their shyness, their flocking to- gether and following a leader, and their natural inclination to climb hills and even knolls, recall the characteristics of their ancestors, the wild sheep of the mountains. They are more closely allied to our cattle than to other farm stock. Like the cattle they are cloven-footed, have four stortachs, and chew the cud. Cattle are more in- clined to the wet bottomland and the water courses, sheep to the dry uplands. ^ ... i J -..u 1 • 11 UU Fig. 74.— Whatbreedisit? Cattle are coated with hair and sheep with wool. The sheep is one of man's earliest farm chattels, provid- ing him with both meat and clothing, and is of very great usefulness in helping maintain the fertility of the soil. Wool. — Hair and wool contain nitrogen, as you may prove by burning — ammonia being given off. Burn a piece of cotton thread and notice the result. The wool of the sheep is for its protection, and therefore the length and thickness of the wool vary with the climate of the countries in which the sheep are living. The same is true of the hair of cattle, as we see in the case of the shaggy covering of the Highland breed of cattle. Horses exposed to the winter weather grow a coarse coat. Food also affects the quality of the wool. If the food is not uniform the wool will become irregular and be of poor quality. 134 AGRICULTURE. No Other farm animal is so much affected by its surroundings as the sheep. As a consequence we find so many different varieties, and for this reason we must be careful to choose the variety that is most likely to do well in the conditions of the farm on which they are desired to be grown — such as situation, climate, etc. Why is wool warm ? Because it is fine and open and holds so much air in its fibres, and this air prevents the heat of the body from going off; as we say it is a poor conductor of heat. It is not because it keeps out cold, but because it keeps in the heat of the body. If you wrap a piece of ice in a loose thick woollen cloth it will prevent the ice from melting rapidly. Why ? Because the heat outside does not pass through or get in. Double windows in a house are a protection, not because of the glass in the panes, but because of the air between the two windows. So the hollow space in the wall of a silo keeps in the heat of the ensilage, and thus prevents it from freezing. A covering of loose snow protects the wheat for the same reason. Now that we under- stand that wool keeps the sheep warm while it is on the sheep's back, we ask why wool can be made into yarn and cloth. If you look at a fibre of wool under a magnifying glass you will see that it is made up of sections, that there are little joints or scales on the wool and when several fibres are twisted together these little scales catch into one another and the fibres thus hold together tightly — the wool, as we say, "felts" well. There comes from the skin of the sheep a soapy substance called the " yolk," which covers the inner wool and helps to shed the rain. It prevents the wool from felting on the sheep's body. When the fleece is washed this is washed out and the fleece becomes much lighter. Sheep are by nature fitted to stand cold, but not wet weather — they should always have dry quarters. Breeds of Sheep. — Sheep of various breeds are found in Britain, from the marsh lands of Kent to the mountains of Wales and Scotland. They have adapted themselves in time bHEEP. 135 to a great variety of soil and climate, and in selecting sheep for a farm it is well to get the breed suited to the situation. The following is a table of the principal British breeds : Mountain Breeds. Upland or Hill Breeds. Welsh, Dorset, Cheviot, Southdown, Highland. Suffolk, Lowland Breeds. Hampshire, Cotswold, Shropshire, Leicester, Oxford. Lincoln, Romney Marsh. The lowland breeds are long-wooled and the upland breeds short-wooled. The lowland breeds are larger than the uplands. The upland breeds are the best mutton breeds. Short wool from 3 to 4 inches long is sometimes called carding wool, and longer wool, from 7 to 8 inches long, combing wool. The principal breeds of this country may be arranged as follows, according to the texture of their wool : Fine-ivooled : — Merino ; Medium-wooled : — Southdown, Shropshire, Hampshire, Ox- ford Down, Cheviot, Horned Dorset ; Coarse-ivookd : — Leicester, Lincoln, Cotswold. Is the wool on all parts of a sheep's body of the same texture ? Are all long wools coarse, and all short wools fine ? From what parts of Europe have the above breeds of sheep come ? At what time of the year does shearing take place ? Are goats covered with wool or with hair ? What kinds of cloths are made from wool ? Why is flannel cloth warmer than cotton ? What is shoddy ? 136 AGRICULTURE. CHAPTER XXIX. SWINE. Nature of Swine. — The wild hog is still found in many parts of the world. Even in Europe there are districts where wild boars are hunted. From the many kinds of wild hogs our domestic breeds have been derived. In the wild condition the animal is very active, and well able to protect itself by its tusks and teeth. The improving of the wild animal has changed the form, and made an animal that is quite compact and fleshy, and less active. There is less bone in the hog than in sheep or cattle, as one may see from the following statement, which gives the number of pounds of water, fleshy substance, fat, and ash or bony matter in every 100 pounds of a fat ox, a fat sheep, and a fat pig : Fat Ox. Fat Sheep. Fat Pig. lb. lb. lb. Water . . 48 46 43 Fleshy matter 15 13 11 Fat 32 38 44 Ash (bony part) 5 3 2 Thus it will be seen that a fat pig has more fat and less bone in proportion to its weight than a fat ox or a fat sheep. Growth. - Although the hog has cloven hoofs, it does not ruminate or chew its cud as do the cow and the sheep. Therefore, we may conclude at once that it does not digest its food in the same way as they do. It has only one stomach. And yet we find that the hog grows in weight more rapidly. How do we explain this ? There are three things to be con- sidered : First, the kind of food which the animal eats; second, the means which the animal has of digesting its food ; and, third, what the food, after being digested, is used for. SWINE. 13^ First, as to the food eaten. Pigs are able to eat a greater variety of foods than cattle or sheep. The wild hog lives on grass, roots, nuts, etc. Our domestic hogs are generally fed the richest kinds of food —peas, corn, wheat, skim milk, flesh meal, etc. Pigs will greedily devour the richest rations day after day of which most other animals would soon become tired. Second, as to the power of digesting food. As we have stated before, the animal digests and takes up its food through the stomach and intestines. The pig has a small stomach, but a very long intestine. The following table gives an idea of the weight of the stomach and intestines in proportion to the whole body, and also the weight of the four quarters : Cattle. Sheep. Swine. Per cent. Per cent. Per cent. Stomach 4% 2^ i^ Intestines 2 2}^ 4 Four quarters 47)'2 45 73 Thus it will be seen that in cattle the stomach is over twice the intestines in weight, in sheep about equal, whereas in swine the intestines are over three times the weight of the stomach. We conclude that swine have small stomachs, and can take only a small amount of food at a time, but, because of their very long intestines, they are able to digest the food much more thoroughly - that is, they feed frequently and digest their food thoroughly. Third, as to the use made of the food digested. They are not so active as sheep or cattle ; they are generally more shut in, and therefore they do not use up as much of their food through exercise. English experiments prove that, out of every 100 pounds of digested food, cattle use 23 pounds, sheep 26, and swine 43, for making increase in their bodies. When, further, we remember that swine increase in number so much more rapidly than cattle or sheep, we can understand why the keeping of swine is so profitable a part of farm work. 138 AGRICULTURE. Breeds of Swine. — Every country has its own peculiar breeds of swine. In England there are, besides many others, the following : The Large White, the Small White, and the Middle breeds (so named according to their size and color) ; also the Black Suffolk or Essex, the Berkshires, the Dorsets, and the Tamworths. In America there have been developed breeds known as the Chester White (Pennsylvania), the Poland China (Ohio), and the Duroc or Jersey Red (New Jersey). The Yorkshires and Improved Yorkshires of America are derived from the Large White swine of England. Feeding of Swine. — In producing pork and bacon, three things are to be noted : Selection of the right kind of swine ; feeding the best kind of food ; housing the animals in suitable quarters. In producing swine for bacon and hams that are required for city consump- tion, hogs of medium size, that produce lean meat and fat in proper proportion, are the best. Foods such as the bye-products of milk, peas, wheat, and barley, will produce more lean meat and less fat than corn. The hog is sometimes considered a dirty animal. For this the owner is as much respon- sible as the animal. Clean housing and good care will pay with swine as much as with other animals. Fig. 75.— Two sides of pork, showing method of cutting up. ' Streaky quarter. 9 Loin. 2 Rib quartet. 10 Fillet. 3 Middle quarter. 11 Shoulder. 4 Hams " 12 Prime streaky. 5 End of neck. 13 Thin " 6 Middle of neck. 14 Flank. 7 Thick back and sides. 15 ISIiddle of gammon. 8 Prime back and ribs. 16 Knuckle of gammon. 17 Fore end. POULTRY. 139 CHAPTER XXX. POULTRY. Origin. — In addition to the common poultry of the farm, we have turkeys, geese, ducks ; also guinea-fowls, pea-fowls and pheasants. These are all closely related to various kinds of wild fowls and some of them are very similar to these wild fowls in appearance. In our common fowls there are very many varieties of breeds, from the small bantams to the large brahmas, differing in size, in shape, and in the color and form of feather or plumage. It is believed that all have been derived from one original source, a wild breed of fowl. Many consider that the common Jungle Fowl of India is the source from which have come all the varieties. This fowl is somewhat like the Black-breasted Red Game, and is still found in India. Others think a wild fowl now no longer found is the ancestor. How have our breeds been formed ? Just as new breeds are now being formed. Suppose we take a flock of fowls and observe them from year to year, as they increase in number. We shall get some chickens that, as they grow, show differences in form, size and color. Even if they are all one variety, here and there one will appear having some slight difference from the others. We select two or three that have a new coloring in their feathers that we desire to continue. Those selected are differ- ent from the others, but similar to one another. We place them by themselves and allow them to breed. The chickens that we raise from them will probably have the same peculiar kind of feathers. We select those that are most alike and breed from them. After a few years we may be able to raise a number of fowls that are quite similar in appearance to one 140 AGRICULTURE. another, out quite different from the original flock, and whose chickens will resemble the parent fowls. Thus a new variety or breed will be obtained. Or we may take birds from two different kinds of fowls and cross them. By carefully selecting only those that have the peculiarities that we desire to preserve, we shall soon get a new breed which may be improved in size and shape by selecting only the best, male and female, to breed from. Thus the Plymouth Rocks have been obtained by crossing American Dominiques with Cochins. It is very important to note that the fowls are so readily changed in form 1 Comb. 2 Face. 3 Wattle. 4 Earlobe. 5 Hackle. 6 Breast. 7 Back. 8 Saddle. 9 Saddle feathers, 10 Sickles. J I Tail coverts. Fig 76. — Parts of a Fowl. 12 Main tail feathers. 13 Wing-bow. 14 Wing coverts forming the " bar.' 15 Secondaries. i5 Primaries, or flight feathers. 17 Point of breast bone. 18 Thighs, ig Hocks. 20 Legs or shanks, 21 .Spur. 82 Toes or claws, POULTRY. 141 and feathers. Breeds that are so readily changed will soon run out unless care is constantly taken to improve them, by weed- ing out the poorest and keeping the best with care. The Parts of a Fowl. — Since all have the same origin we may expect that they will all have some characteristics in common. The general form is the same. Fig. 76 gives us the names of the various parts. Varieties. —In some varieties, such as the Cochins, the Langshans, and the Brahmas, the feathers extend down the outside of the legs or shanks. From this fact we sometimes have the fowls divided into the two classes, the smooth-legi^ed and the feather-legged. The different breeds are further sub- divided according to the color of their plumage ; thus we have Dark Brahmas and Light Brahmas ; also Black, Buff, White and Partridge Cochins. Another mode of classing fowls is into laying varieties and sitting varieties. Sometimes they are classed according to the country or region from which they have been derived, as Asiatics, Mediterraneans, Americans. Characteristics. — Common fowls have four toes, three in front and one to the rear. They are not web-footed, there- fore we conclude they are fitted by nature for hard dry soil. What is the use of the web foot in ducks and geese ? The toes have sharp strong nails for scratching. From this we notice that they should be supplied with a dry run where they can scratch and exercise themselves and their young broods. Fowls take their young to seek for food and birds bring food to their young in the nest. They need plenty of sunlight, as we may conclude from watching chickens basking in the sunshine. How do fowls drink water ? Have they teeth? What is the use of the crop in fowls ? As to food we have only to remember what the fowls require food for to conclude that they need plenty of rich food. They are constantly growing feathers which are rich in nitro- gen, their flesh is principally lean meat, their eggs are what we 142 AGRICULTURE. call "strong meat." For their good health they need also some green food. The shells of their eggs are largely com- posed of lime, therefore we must give them mineral matter, especially when more or less shut in and when the ground is covered with snow. They are fitted by nature for picking out the richest food, such as insects and small seeds. The health of the fowls depends greatly upon having a variety of clean food to eat, clean water to drink, clean places in which to roost and nest. The fowls keep their coats and skins clean of insects by dusting, as do many other animals. Because of the rich food, such as grains and insects, which fowls feed upon, we may expect the droppings to be rich in fertilizing material. The richest manure made upon the farm is that from fowls. It should be carefully saved and used where it will do most good. The use of gypsum or sifted coal ashes about the hennery, especially under the perches, (not common lime or wood ashes) will keep the buildings clean and sweet. In washing the buildings with lime or other disinfectant, the orchard spray pump may be used. Eggs. —A good flock of laying hens should lay on the average ten dozen eggs each. The egg consists of the shell, which is porous, the lining or membrane, the " white " or albumen, and the yolk. Can you give any reason for some birds' eggs being nearlj spherical in shape, and others oval like hens' eggs ? In which end is the air chamber of an egg ? Why is a stale egg lighter than a fresh egg ? What is meant by " candling " eggs ? Why is the shell porous ? Why does the setting hen turn the eggs under her ? W^hat is an incubator ? How long does it take to hatch a chick from an egg ? Why does a " moulting " hen not lay eggs ? What are the principal methods of preserving eggs ? Which is the better test of a laying hen ? The number of eggs laid, or the total weight of eggs laid ? MILK. 143 CHAPTER XXXI MILK. Milk. — Nature provides as a food for the young calf the milk of the mother cow. For a short time after the birth of the calf this product is called " colostrum." In a few days, however, the cow gives in her udder milk such as we use. The giving of milk is to a great extent an acquired habit. In the case of breeds raised for beef only, as in the case of Herefords, the quantity of milk given is not large. Where, however, the aim has been to produce dairy cows the continued practice of milking has gradually increased the flow of milk. The knowledge of this is important. For instance, if we begin by milking a cow, say for only six months, and then allow her to go dry, she will of herself be inclined to go dry thereafter at about the end of six months. If we do not thoroughly milk out a cow at first, she will gradually drop off in her flow. It is of importance, then, to thoroughly milk out the cows, especially as the strippings are the richest portion of the milk. Anything that irritates or disturbs a cow will cause her to " hold up " and to produce a poorer milk. The cow as a milk-producing animal, it must be remembered, is very much what her owner makes her, and she will give many of her qualities to her calf. If we place some milk in a tall, narrow glass, and allow it to stand for a while, there will gradually rise to the top a thick substance, sometimes yellowish in color, which we call cream When thfs cream is churned, we get from it butter, which is an oily substance. Carefully remove the cream, and allow the other portion of the milk, the skim-milk, to stand for some time until it thoroughly sours ; we shall find that a curdy 144 AGRICULTURE. substance separates and leaves a bluish water behind. The cream or butter, then, is an oil or fat which is mixed through the milk, and from the fact that it comes to the top we conclude that it is lighter than the skim-milk. It is not dissolved in the water of the milk as sugar is dissolved in water, but is simply mixed with it or distributed through it in very fine particles ; in fact, we can put it back into the skim-milk if we pour the two together from one vessel into another before the milk sours. It is in the form of what is called an "emulsion." When fresh milk is run through a cream separator, the heavy skim-milk is thrown away from the lighter fat or cream. This could not be done if the fat were dissolved in it. Milk, then, contains water and fat or oil — ;:__„ — ; „__.^^.Lwv^ butter-fat, as it is called. Now Fig. 77.— Milk, showing the fat globules take some skim-milk and slight- ''"^''"^ '" "• ly warm it. A thin scum forms upon it. This scum is composed principally of albuftien, a nitrogen compound similar to the white of egg, which becomes white and nsoluble by heating or cooking. It forms but a small portion of the milk. If, however, we put a few drops of rennet or vinegar into the skim-milk, a curdling at once takes place, and a considerable quantity of material is thrown out of solution and floats about as a curdy or cheesy mass; this is the casein of the milk, also a nitrogen compound. Then we have at least two nitrogen compounds in milk — the albumen, which is curdled by heat, and the casein, which is curdled by acids, The latter is in much larger quantity than the former, and both are in solution in the water of the milk. We can readily prove that these two contain nitrogen, and differ therein from the fat. Take some pure butter and burn '■' ' y . -■■ '"■' ..0 ■ :'■ ' ' "''. ^^_-:'''-j - . - c MILK. 145 it on the end of an old knife, then burn some casein curd or cheese, and notice the strong ammonia smell from the latter. If, now, we pour off the clean water from the curd, and carefully evaporate the water in a saucer placed over the steam of a kettle or in a slow oven, we shall get a white substance that tastes sweet but gritty ; it is the sugar of the milk, called milk- sugar or lactose. Finally, if we carefully dry out a little dish of milk and burn it thoroughly, we shall have left a small quantity of ash or mineral matter. Milk, therefore, consists ot water, having particles of butter-fat floating in it undissolved, and having in solution casein and albumen, milk-sugar, and ash. The composition may be stated as follows : Water, from 80 to 90 averaging 87.0 per cent. Fat, from 2 to 10 " 4.0 " Casein or cheesy substance . . " 3.0 " Albumen " 0.5 " Sugar or lactose *' 4.8 " Ash or mineral matter " 0.7 " A pitcher of warm water gives off vapor into the air, but a pitcher of ice water will have vapor settle up its sides from the air. So it is with milk. Milk is warm when first milked and we can smell the odor, the cow odor, as it passes off into the air ; but it soon begins to cool down and vapors of the air will settle upon its surface as upon the cold pitcher. If, there- fore, we leave a pail of milk standing in the stable, or near any food that has a bad smell, it will take up foul air that can after- wards be tasted in the milk, the butter and the cheese. As soon as milking is done the milk should at once be taken to a clean milk-house or cellar. But bad odors and tastes can be given from the food. Thus turnips, bad ensilage, cabbage, rape and weeds of many kinds will affect the milk. All such should be kept from the animal. Here we see a strong argu- ment for keeping pastures clean. Every trace of musty food such as mouldy ensilage or rotting roots should be kept from 146 AGRICULTURE. the cows. The mangers should be kept sweet. No more food should be given than the cows will eat up clean, otherwise the feeding boxes may become stale. The best way to get good flavored milk is to feed only such foods as will give a good flavor. A plentiful supply of salt always within reach will improve the digestion, increase the eating power, keep the system in good condition, and increase the flow of milk. Fig. 78. — The udder, left s'de, with skin removed, a is an artery wi h branches c, d, and e carrying blood to different parts; <^ is a vein with branches g, h, ando; / is a lymphatic gland ; >« is the milk vein ; / is a nerve, of which w is a branch and jr is a continuation. Heneath and connected with the above parts is a milk gland, the outlets of which are through these two teats. In the upper part of each of the teals is a small milk cistern. On the opposite side of the udder is a second gland having outlets through the two right teats. Out of the blood brought to the udder thro\igh the arteries, l\\'. cells ne.xt to the glands are formed These cells are gradually changtd into milk, which fills the glands and the milk cisterns, and passes off through the nipple of the teats. PROOUCTS OF MILK. I47 CHAPTER XXX II. PRODUCTS OF MILK. Cream. — The cream is formed by the particles or globules of fat which, because they are lighter than water, rise to the surface. These globules are very small— it would take about 2,000 of the largest of them placed side by side to make an inch. To see them, they must be examined under a powerful microscope. Some of them are smaller than others. The larger they are, the more rapidly they will rise, and the more quickly and thoroughly the milk will cream. Milk with large fat globules is therefore adapted to butter-making ; that with small fat globules is well adapted to cheese-making. These fat globules are not transparent ; therefore instruments are some- times used to determine the quantity of fat in milk by determining how much water must be added before the milk can be clearly seen through. Such instruments are called "lactoscopes." The separating of the cream from the milk is done either by placing the milk in pans or cans, and allowing the cream to rise of itself, because it is lighter than the water ; or by running it through a machine called a "separator." This consists mainly of a steel bowl, which is caused to revolve at a very high rate of speed. The water, being heavier, flies to the outside next to the bowl, and flows off by one s{)out, and the cream is left behind in the inner part of the bowl, and flows off by another spout. In order to allow the water and cream to separate more easily, the milk is warmed slightly before it is run into the bowl. The cream by this process is separated in 148 AGRICULTURE. a fresh, sweet condition, whereas by the "cream-setting" process it may be more or less soured or ripened. The richness of milk in cream varies greatly with the different breeds, the different animals of the same breed, the period of milking, and the portion of the milk taken. The strippings or last portions of the milk are richer in cream than the fore-milk or first portion milked, as the water comes away from the udder in larger portions at first, and the fat appears to be set free in the udder by the process of milking. Ordinarily cream will contain from 55 to 65 per cent, of water, 25 to 40 per cent, of fat, and some sugar and casein. If the milk sours during creaming, so as to cause the casein to curdle, more casein will be carried along with the fat. 1 herefore, the milk should be kept cool in creaming by the setting process. In creaming milk, the purpose should be to remove the butter-fat as thoroughly as possible, in as sweet a condition as possible, and with as little water as possible. Skim-milk. — This is the milk that has been skimmed of its cream, or from which the fat has been removed by the separ- ator. If we could take all of the fat, and only the fat, we would still have left in the skim-milk the water, casein and albumen, sugar, and ash. The skim-milk would contain a large amount of very important food compounds, viz.: casein and albumen, which can make muscle and flesh, or form fat, or be burned up to produce heat ; sugar, which can be used for producing heat ; and ash of the best kind for making bone. Thus we see that skim-milk is a most important food, only the fat is lacking to make it a perfect food for young animals. We can replace this fat that has been removed in the cream by mixing with it a small quantity of some oily food, such as a little boiled linseed. If, then, we take away the milk from the young calf for making butter, we can give it back to it by adding linseed or some rich meal to the warm skim-milk, and thus imitate the natural cow's milk. When the cream is PRODUCTS OF MILK. 149 removed by the separator, the skim-milk is still quite sweet, but when we allow the milk to rise m shallow pans, or even in deep cans, the milk may become a little soured, unless we keep ice or cool water around it. When liquids become sour it is because of the forming of what we call an acid, like the acid of vinegar. The acid that is formed in milk when it first sours is called lactic acid (from the latin word lac, meaning " milk "). This lactic acid is formed from the sugar of the milk or the lactose. Since the sugar is very soluble, any water that goes off in the cream will contain lactose, so that lactic acid will form also in cream. This acid at once acts upon the casein, changing it from a soluble substance to an insoluble substance ; therefore, as soon as acid begins to form, the milk will begin to curdle. This lactic acid is not nearly so valuable for food as the sugar from which it is formed ; therefore, sweet skim-milk and sweet whey are always more valuable for feeding than sour milk or sour whey, and care should be taken to keep them as sweet as possible. But why does milk sour? What causes the sweet sugar to change to the Fig. 79. -Yeast, magnified. SOUr acid ? YoU knOW that yeast causes bread to "work" or to ferment. The yeast is a mass of little plants, each plant very simple and very small. These plants feed upon the substances in the dough, changing them and making new compounds, some of which are gases. These gases push out in all directions, and make little air-holes all through the bread, causing it to be light, as we say. Now, yeast is only one kind of these minute little plants. They are found everywhere floating about in the air by millions, too small to be seen. Some of them, we have already stated, grow in little knots or balls on the roots of clover and peas. 150 AGRICULTURE. Some of them are acting constantly in the soil, changing some of the humus into nitrates for the roots of plants. Some of them gather on cheese and form blue-mold. Some of them get into the refuse barrels and cause decay of the pieces of food thrown therein. Some of them drop into the cider or wine and make vinegar. There are very many kinds, each kind working in its own way. They can be recognized only by a very power- ful microscope. One kind, that is very common, drops into the milk and changes the sugar into lactic acid. Supposing that we do not Fig 80.— One of the ferments . of milk, magnified. clcan out a milk pail or a milk can thoroughly, what will happen? Many of these little ferments, or bacteria, as they are called, will settle on the sides and get into the cracks, and just as soon as milk is placed in the vessel they will begin to act upon the milk, causing it to sour rapidly, or to produce substances that have a nasty taste or an unpleasant odor. If there is any trace of milk left in the can after the milk is poured out, they rush down upon it and begin to feed and increase in number. Any dirty places about the floor, or table, or walls, will also cause them to greatly increase. Tainted milk is not pleasant to drink, it makes poor butter and poor cheese ; so that for success in dairying every- thing must be kept clean, very clean — the cows, the food, the stables, the pails, the utensils, the milk house, and the dairy workers. One of the great reasons for using ice and cold spring water to keep the milk, cream, and butter sweet is because these little ferments cannot do harm in very cold places. They do their work only when they are kept moder- ately warm. Science, then, teaches us that in dairying it pays to be clean. In addition to ferments which may get in from the outside it is thought that there are minute forms of life some- what similar to these ferments, which are contained in the PRODUCTS OF MILK. I5I milk itself. These work changes in the milk and milk pro- ducts when the conditions are favorable. Butter. — We have referred to the use of the separator for obtaining sweet cream from the fresh, warm milk. A machine made on a similar plan is capable of so throwing the particles of fat together that they come out, not in the form of cream, but of fine butter. This machine is called an "extractor." The butter made from it will, of course, be sweet cream butter. Ordinarily, however, the cream is obtained either by the separator, by setting in shallow pans, or by setting in deep cans placed in ice water. Then the cream is allowed to ripen. This ripening is caused by some of the little ferments that were referred to before. These get in from the air, or they may be placed there by taking a little cream from some that has already ripened, just as we may take some dough that has already worked and place in a fresh lot of dough to start it working. At once these ferments begin work, and produce changes that give a new taste or flavor and a new odor to the cream. If we allow the cream to stand too long, or in a foul atmosphere, some ferments will get in that will produce unpleasant taste and foul odors. These little ferments, then, help us in our work, or they can spoil our work. We must, therefore, learn the methods which will give us the best ferments to assist us and keep out the bad ferments that will hinder us. If the milk or the cream is first warmed for a few minutes the ferments in the milk will be killed — the milk will be "pasteurized," as we say. Then whatever may be desired is added, and the ripening of the cream takes place. By this method the making of butter is under the perfect control of the dairyman, and butter of uniform quality is produced. The cream, well-ripened, is placed in the churn, and the action of the churn throws the little particles of fat together, until soon we have them gathered into little masses ; the butter begins to come in little grains ; these grains gather into large 152 AGRICULTURE. lumps, and soon the buttermilk can be drawn off. The butter is washed in the churn with cold water, and then turned out and worked and salted. The buttermilk contains some lactic acid and casein, both of which, if left in the butter, would be further acted upon by ferments, and disagreeable compounds would be formed ; therefore, the buttermilk is carefully drawn off, the washing is thoroughly done, and the working of the butter drives off the last traces or almost the last traces. The working of the butter, then, is to take out the rest of the buttermilk, but it must be done carefully, so as not to break the tiny grains of the butter and rub them into an oily mass. Then the salting — what is it for ? Salt, we know, preserves food. It attracts moisture, the moisture of the buttermilk, and it prevents the ferments from going on with their work. By all this process we have got rid of nearly all the casein, sugar, and ash ; we have still some of the water ; and we should have all, or nearly all, the butter-fat that was in the milk. Any sugar, or acid, or casein that is left, will in time be likely to set the ferments at work and make the butter rancid or stale. Buttermilk. — Since cream varies so much, according to the system of getting the cream, the buttermilk will vary a great deal in composition and value. It should contain very little fat if the churning has been properly done, less than one per cent. It will contain a little ash, quite an amount of lactic acid, and some casein. The casein will vary with the system of creaming. As a food, it should be used as soon after churning as possible, before further fermenting is set up. Cheese. — In making butter, we try to take all the butter-fat, and only the butter-fat, out of the milk ; in making cheese, we try to take all the casein and the fat out of the milk. If we were simply to take the casein out of skim-milk, we would get what is called a skim-milk cheese, or a skim-cheese. Usually, however, whole milk is used, and a great many different kinds of cheese may be made. The milk of goats and of ewes is PRODUCTS OF MILK. 153 sometimes used, but the cheese of this country is made almost entirely from cows' milk. Formerly, the cheese was made in the private dairies, but now principally in factories, to which the milk is drawn. The cheese usually made here in the factories is what is known as Cheddar cheese. It is more properly called American Cheddar, or Canadian Cheddar. The fat, as we already know, is simply floating in the milk in fine particles, but the casein is held in solution. To get it out of the milk it must be changed to an insoluble form. Rennet is the substance used for this purpose. This is an extract obtained from calves' stomachs. If a little rennet is dropped into a glass of milk, the casein will at once begin to appear as a flaky, curdy substance with the fat entangled in it, and the water may be poured off, leaving behind the casein and fat. In the factory, the milk is strained and run into large vats that have a larger vessel or jacket around them for holding water or steam. By means of this jacket the milk can be cooled or warmed, as the maker desires. The rennet is added, and at once curdling begins ; the proper heat is obtained by hot water or steam, and the curdy milk begins to "ripen." Gradually, by working, the flakes or grains of curd increase in size, and when the proper time comes the water is run off. This water or whey carries away the sugar of the milk and most of the ash material ; little or none of the fat should float away on it if the cheese-making has been properly done. The curd is heaped up and allowed to drain, when it appears as a crumbled mass. Some salt is added and mixed with it ; then it is run through the mill, and is ready for putting up in pack- ages. These packages are pressed out and bandages are put on them, when they are taken to the curing room. The curing of the cheese is a very important part of the making. The room is kept at a warm temperature, and various ferments work in the cheese, causing changes that add much to the flavor and tood value of the cheese. The fresh, or "green," T54 AGRICULTURE. cheese is not nearly so tasty or so digestible as the matured or well-ripened cheese. If the cheese is allowed to remain exposed to the air it will mold, and its value will be greatly decreased. Its rich flavor depends largely upon the cream of the milk and the changes that take place both in the ripening in the vat and in the after-ripening in the curing-room. Whey. — If we remember that the whey contains the sugar of the milk, most of the ash, and some of the albumen, and casein, and fat, we shall conclude that it contains some food of value. But this value depends upon its being used while "sweet," before it sours, for then its sugar changes to lactic acid, which is not of much value. As a food, it is specially adapted to the feeding of pigs. One of the greatest difficulties about cheese factories arises from the souring of whey. As before stated, success depends upon keeping the factory, the factory yard, and the milk cans absolutely clean. We may sum up the various dairy products as containing the following : Whole milk contains water, fat, casein, albumen, sugar, ash ; Skim-milk contains water, casein, albumen, sugar, ash; Butter contains water and fat principally ; Cheese contains water, fat, casein ; Whey contains water, sugar, ash, some albumen. The average composition is about as follows in every one hundred pounds : Casein and W.iter. Fat. Albumen. Sugar. Ash. Whole milk. . . 87.0 4.0 3.5 4.8 0.7 Skim-milk.... 90.0 0.5 3.0 5.0 0.7 Butter 10.0 86.5 i.o 0.5 2.0 Cheese 35.0 33.0 28.0 0.0 4.0 Whey 93.0 0.3 1.0 5.0 0.7 THE STRUCTURE OF ANIMALS. 155 CHAPTER XXXIII. THE STRUCTURE OF ANIMALS. Plants and Animals. — What is the difference between a plant and an animal ? It is sometimes very difficult to deter- mine whether some of the lower forms of living matter are plants or animals. In the higher forms the distinction is easily made by us. What is the difference? A horse requires air, water, and food. So does a tree. The horse takes in oxygen from the air and breathes out carbonic acid gas ; the tree takes in carbonic acid gas and gives out oxygen. The horse can move about at will to seek food ; the tree remains fixed, and the food comes or is brought to it. The horse feeds upon plants — organized food; the plant feeds upon crude material, such as mineral compounds - unorganized food. The plant, therefore, is built up from the simple substances in the air, soil, and water. The animal builds itself up largely by feeding upon the material formed by the plants. This distinction, however, does not hold in the case of all plants and all animals. Can you state any exceptions to the above ? Bones. — These are the framework or foundation. They largely make the general form of the animal. The bones of a young animal are pliable, but they become more rigid as the animal grows older. They are the support of the animal, but to enable the animal to move, they are in parts joined together. Notice how_^ every bone is suited to its place. The skull covers the top and back of the head, thereby protecting the brain. The ribs, front and back, protect the heart and lungs. Why are they not closely joined together, as the bones of the skull? The bones are suited in size and length to the uses required 156 AGRICULTURE. of the various parts of the body, as may be seen in the bones of the arm and the fingers. The bones are composed of mineral material, phosphate of lime being the principal con- stituent. In structure, they are more or less porous or cellular. Muscles. - The bones are ingeniously joined together in many places, but to hold them together and to move them muscles are required. In some places these are large and tough, in others they are smaller and more tender. The lean part of an animal's body is a mass of fine muscle fibres. Feel their movement on the inside of the wrist while closing the fist. Grasp your upper right arm, then move the lower right arm up and down. We observe that the muscles that do the most work are the strongest and largest. These muscles are in all parts of the body, crossing and overlapping. By con- tracting and expanding them the animal moves the bones, and therefore the part of the body containing the bones. Around them and over them we sometimes find layers of fat which act as a sort of packing. The Organs. — In addition to the ordinary muscles, there are the tongue, the throat, the stomach, the heart, the lungs, the liver, the kidneys, the intestines, etc. These are different in shape and different in their uses, but all are very much like the muscles and tendons in composition — they may be called structures of muscles formed together into certain definite shapes, so as to do certain definite work. The skin, the hair, the wool, the hoofs, and the horns, that is, the outer parts of an animal, are also made up of the same kind of material as the flesh and muscle. Blood. — " The blood is the life." It flows through all parts of the body, and it is out of it that all the various parts — bone, muscle, organs, lean flesh, fat — are formed. When we examine blood under a microscope we find that it somewhat resembles milk, as shown in figure 77, page 144. First of all, there is the liquid part, which is called plasma. In this plasma THE STRUCTURE OF ANIMALS. 157 are floating a large number of small disc-shaped particles, which are called corpuscles. Most of these are red, and thereby give a red color to the blood. Some are white corpuscles. It is by means of these corpuscles that much of the material is carried throu<,di the system, lu^r instance, in the lungs they take up a load of oxygen and carry it to all parts of the body and bring back a load of carbonic acid gas to be breathed out from the lungs. In the plasma is contained much of the material that goes to build up bone and flesh. We have seen that when the albumen of milk or white of egg is heated it becomes insoluble, or is clotted. When acids are added to milk, the casein becomes clotted. In plasma there is a similar nitrogenous substance, fihrin, which is clotted by the action of the air. When blood flows from a cut, therefore, the clotted fibrin and the corpuscles that are entangled in it form a cover- ing for the wound — otherwise the animal would bleed to death. When a clot forms inside of the body, circulation stops at that point, and death frequently results. In a man the blood forms about one-thirteenth of his entire weight. Conclusion. — Apart from the water of the body, the various digestive liquids and agents, and the blood, we have, then, three classes of compounds in the animal body— the bones; the fat ; and the muscles, the various organs, lean flesh, hair, hoofs, and horns. The bones, as we have already stated, are largely made up of ash or mineral matter ; the fat contains three chemical elements — carbon, hydrogen, and oxygen; the third, or muscle class, is made up of five elements — carbon, hydrogen, oxygen, nitrogen, and sulphur. To show in what proportion these are contained in an animal's body, we give one example. The body of a half-fat ox, after the removal of the stomach and intestines, will contain in every 100 pounds the following : Water, 56 pounds ; flesh and muscle material, 18 pounds; fat, 21 pounds; bone material, 5 pounds. AGRICULTURE. CHAPTER XXXIV. FOODS OF ANIMALS. Uses of Foods. —First of all, an animal requires food to build up its body — to form bone, flesh, muscle, organs, skin, hair, wool, fat, etc. The material for all these must be con- tained in its food or the water it drinks. In the next place, it requires food, or fuel, to keep it warm, to supply heat to the body. Then it requires food to keep it alive — a horse shut up in the stable without food for a single day will suffer. This food is necessary to replace the waste constantly taking place. The body is constantly changing, and requires food to renew it, whether the animal is working or standing still, whether sleeping or awake. In the fourth place, work demands food. An engine at work demands a supply of energy — this comes from the burning of the fuel under the boiler. A horse moving about or doing work requires food to supply energy. These four demands are made upon the food which is daily given to an animal, and the food given should be chosen so as to supply these demands. We have on page 159 a table of the composition of the principal foods given to animals. This table is simply for reference, and is given in order to get a general idea of the great difference in the various foods used. Water. — We see that green grass, roots, and fodder corn all have a large quantity of water - from 75 to over 90 per cent, (that is, pounds per hundred) — whereas hay, straw and grain have only from 12 to 16 per cent. Young plants that are cut while still green are therefore succulent foods and are eaten by animals in large quantities. As plants grow older and mature, the amount of water that they contain gradually decreases. POODS or ANIMALS. Composition of Foods. 159 Milk, whole Milk, skimmed Linseed Oil Cake (old process) . Oil Cake (new process) Oatmeal Cottonseed Meal . . . . : Pasture grass Meadow Hay, average . Red Clover, average Wheat Straw Oat Straw Pea Straw Corn Stalks , Wheat Barley Oats Corn Peas Bran Middlings Mangels Turnips Carrots Potatoes Corn Silage S7 90 I 2 9 10 8 8 65 13 15 10 10 10 40 T I I I I I I I 1 I 12 I 2 90 90 90 80 80 "o "S 3-5 3-8 21 30 34 15 40 4 6 12 3-5 4.0 7.0 4.0 12 1 2.. 5 1 2 10 20 15 15 1-5 I I 2 2 O o 4.0 °-5 36.0 lO.O 3-0 7.0 13-0 I.O 2-5 3-0 1-3 2-3 2-5 1.0 2 2 5 5-5 2.0 4 4 0.2 0.2 0.4 o. I I O O 4.8 19-5 36 39 67 26 45 • 39 43 42 35-5 33-° 73-0 695 60.0 70.0 53 54 61 6.3 6.8 6.6 17.9 10. o 8.0 9 10 I 6 9 29 25 38 37 40 20 2 3 9 < o 7 0.7 3-5 6 7 2 7 2-5 4-5 6.0 4 5 5 2 2 2 3 1-5 2.0 6.0 3 l6o AGRICULTURE. Albuminoids. — Compounds like albumen or white of egg, the casein of milk, the gluten of wheat, and the fibiin of meat, are known as albuminoids ox protein. They are all compounds containing nitrogen, and are the flesh-forming substances of food. They are very low in roots, a little larger in grass, still larger in hay ; so that we see that they increase as plants ma- ture. They are very low in straw, but quite large in grain. Why is this ? As the wheat, oats, and other plants are grow- ing they take up food from the air and soil and, until blossom- ing time, all their food is contained in the leaves, stalks, and roots. After blossoming the seeds form, and material that has been stored in the stalk and leaves is used to build up the seed. In most plants very little valuable food is taken into the plant through the roots after the time of blossoming. The leaves continue taking in carbon and the roots water, and therefore starch and sugar continue to increase, but the other substances are about all in the plant by the time of full bloom. Out of the leaf, and stalk the most valuable materials are then carried into the seed ; thus we find the nitrogenous com- pound, the fats or oils, and the most valuable ash compounds, especially the phosphates, stored up in the seed or grain, and not in the straw. Fat. — For the reasons just given we must look for fat or oil principally in the grains. Some seeds, such as flaxseed, con- tain a very large amount of oil. Starch and Sugar. — These materials are very much alike in composition ; they are composed of three elements — carbon, hydrogen, and oxygen. Hydrogen and oxygen, we have learned before, are the two elements composing water. These two are found in starch and sugar in the same proportion as in water, but not as water, and therefore such compounds are sometimes called " carbo-hydrates." They are found in large quantities in all plants and parts of plants, forming as FOOD OF ANIMALS. l6l much as 70 per cent, of some kinds of straw. Notice that this class of compounds does not form one of the leading classes of constituents of the animal body. Fibre. — Woody fibre this is sometimes called. A young plant is easily bent and pulled to pieces ; it contains little fibre. As the plant grows older it becomes stiffer and tougher, because tlie fibre increases. Wood that we burn is nearly all fibre, and we know how tough and indigestible it is. There- fore, we conclude that a large amount of fibre makes a food less valuable. The fibre is formed from the starch and sugar by the addition of carbon. It forms the walls of the cells of plants, and therefore is sometimes called by the name "cellu- lose.' Ash.— The ash or mineral matter is found in all parts of the plant, but, as has been stated already, the most valuable ash is stored up in the seed or grain. The cell walls of the plant fill up with carbon and ash as the plant grows older, and therefore the sap cannot flow through so easily, the cells dry up gradually, and the plant becomes stiffer and tougher. l62 AGRICULTURE. CHAPTER XXXV. DIGESTION AND USES OF FOOD. What is Digestion ? — -The food which the animai eats must pass into and become part of the blood before any use can be made of it. The fuel which keeps it warm or supplies energy to enable it to do work ; the compounds which go to the building up of bone, muscle, flesh, organs, wool, and all other parts of the body ; the material out of which milk is made — all these come from the blood. This material in the blood is made up from the food which the animal eats. The blood may be called a liquid flowing through the body con- taining the material in solution. But the solid portion of our food consists to a large extent of such substances as starch, sugar, fat or oil, nitrogenous compounds, such as the gluten of wheat, the white or albumen of egg, and the fibrin of meat. Of these sugar only is soluble. It is necessary, therefore, to change these insoluble parts of food into soluble forms so that they can pass into the blood. This changing them into soluble forms in the various organs of the animal's body is "digestion." The changes are brought about in the mouth, in the stomach, and in the intestines, and the agents that cause the changes are fernienls somewhat similar to the miimte forms of life already referred to in the curing of cheese, and nitrifi- cation in the soil (see pages 149 and 150.) There are three forms of compounds in the food to be digested —those similar to starch (the carbohydrates), the fats or oils, and the nitrogen compounds (the albuminoids). These we shall refer to as we follow the course of digestion. DIGESTION AND USES OF FOOD. 163 The Course OF Digestion. — The food is first bitten off and taken into the mouth, where it is cut up and ground fine by the teeth. At the same time a Hquid called the saliva is set free from glands in the checks and under the tongue. This saliva not only moistens the food so that it can slip down the throat or gullet, but it also acts ui)()n the starch, converting it into sugar, thus changing it from an inscjluble to a solul)le form. Thus digestion begins in the mouth. Thorough chewing of the food not only breaks up the food fine so that it can be acted upon by the juices of the body, but also helps to set free saliva and mix it with the food to digest the starch. When we remember that starch forms a very large portion of most of our vegetable foods, we see that thorough mastication the food is very necessary to good digestion, and "bolting'' the food by man and many other animals a common cause of indigestion. The food passes from the mouth into the gullet, which is a tube formed of tough elastic rings that can contract and expand as required. Through, the gullet it passes into the stomach. Here it comes in contact with the gastric Juice, which is a secretion of the stomach. The gastric juice acts principally upon the albuminoids, changing them into soluble forms. Some of the soluble and digested food here passes into the blood, but most of it goes on through into the intes- tines. Just below the stomach, and on the right side, is the liver, which builds up or secretes a liquid called bile. This bile flows into the. intestines and acts u\vm the fat of the food, forming with it solul)le compounds. Other secretions come in contact with the food, acting upon the albuminoids and starch to complete the digestion ; and through the walls of the in- testines the soluble foods now pass in large quantities into the blood. The rest of the food that cannot pass into the blood moves on and is expelled from the body, forming the solid excrement. The solid excrement therefore consists of the 164 AGRICULTURE. insoluble portion of the food, that which could not be digested by the secretions of the mouth, stomach, and intestines, and any soluble matter that was unable to get into the blood be- cause of the animal being fed too rapidly or in too large quantity. Its value as a fertilizer will therefore depend upon what we feed and upon how we feed. It may be worth much or very little. At this point it will be worth turning back and reviewing what has been said about the four stomachs of the ruminants (cattle and sheep), the small single stomach of the horse and the pig, and tlie long intestines of the pig. Circulation of the Blood. — The next question is as to the movement of the blood through the body — the circulation of the blood. We start at the heart, which is the headquarters of the blood system, the pumping-station of the system. The heart is made up of muscles which expand and contract and thus give motion to the blood. \Mien the heart stops beating, when it ceases to work, the animal life stops and death takes place. We can feel the beating, of our heart. On the inside of the wrist we can feel the throbbing of our pulse. On the side of the head between the ear and the temple we can feel the same throbbing. Where do you find the pulse of a horse, and the pulse of a cow ? You have doubtless seen an ox heart; if not, try to get one and examine it. In shape it is like a large pear or egg. There are two divisions, one up and down and one across, dividing it into four compartments. The two smaller divisions in the upper or larger part are called the right and the left auricle, and the two larger lower parts are called the right and the left ventricle. The different parts of the heart are connected with tubes that go to all parts of the body, and the four compart- ments are connected by valves. By the movement of the muscles of the heart the blood is driven along. How is its course directed or controlled ? Perhaps you have seen a mill- DIGESTION AND USES OF FOOD. 1 65 race or a small canal with a swinging gate that will open in only one direction. When the water rushes against it one way it opens the gate and passes on ; if it rushes back it shuts the gate and thereby stops itself. So in the heart, the valves open only in one direction, and the tul)es of the heart have valves that allow the blood to flow in only one direction. Thus by means of these automatic or self-closing little gates the course of the heart's blood is controlled and the circulation is always properly directed. Now let us very briefly follow the course of the blood. It comes from all parts of the body into th*e right auricle through two veins, whose valves open only towards the heart. The heart contracts and the blood flows into the right ventricle through the opening, whose valve opens only towards that ventricle. From the right ventricle it goes by an artery to the lungs, where it gets a supply of fresh oxygen from the air and where it gives up its load of carbonic acid gas to be breathed out into the atmosphere. Thus purified it comes back by the veins to the left auricle. Then it passes to the left ventricle. From the left ventricle it is forced out of the heart through the arteries and is carried to all parts of the body. These arteries divide and sub-divide until they become a network of fine tubes called the capillaries. These capillaries uniting again form the veins which carry the blood back again to the right auricle. Thus every beat of the heart sends fresh blood out to all parts of the body, and the old blood comes back to be purified before being sent out again through the arteries. The veins are the tubes that carry the old blood to the heart ; the arteries are the tubes that carry the fresh blood from the heart. We see, therefore, why the cutting of an artery is much more dangerous than the cutting of a vein. In cutting an artery we open up the flow direct from the heart — the sluice- gate is opened for the free flow of the blood. With the stomach, and especially with the intestines, are i66 AGRICULTURE. connected a large number of capillaries. Into these flow the dissolved portion of the blood. After passing through the liver system the material is carried in one of the veins to the heart (the right auricle). In Figure 80 we have a con- densed and modified illustration showing how the blood circulates through the body. The arrows show the direction of flow. The black channels are the veins, and the unshaded the arteries (ex- cept Nos. ID and 12). i is the left side of heart; 2, the right side ; 3, the aorta from the left ventricle ; 4, artery to abdomen ; 5, capillaries ; 6, vein from ab- domen ; 7, artery to head ; 8, ca- pillaries ; 9, vein from head ; 10, artery from right ventricle to lungs; II, the lungs; 12, vein from lungs to left auricle; 13, ar- tery to intestines; 14, small in- testine; 15, capillaries and veins from intestines carrying away digested food; 16, portal vein; 17, artery to liver; 18, liver; 19, vein from liver; 20, lacteals ; 21, duct leading to vein going to the heart by which some ab- sorbed material is taken into circulation ; 22, artery to the kidneys; 23, the kidneys; 24, vein Fig. 80 -The circulation of the f^Q^-^ t^g kidneys, bloud in the body. •' DIGESTION AND USES OF FOOD. 167 Thus we have seen how the digested food gets into the blood, and how the blood is carried through all parts of the body. The next question is as to what is done with this blood. Uses of the Digested Food. — The animal must be kept warm, and therefore some food is required as fuel. The oxy- gen of the air comes in through the lungs and unites with the material in the blood, or with material such as fat formed from the blood. To keep warm, therefore, food and fresh air are necessary. Now you will understand why brisk walking, running, or working in fresh air, even in cold air, will cause you to become warm, especially if you have been well fed. It is like starting a fire with plenty of good dry fuel and opening the draughts. Then there is bone to be built up in one place, muscle in another, wool or hair in another. If the animal is growing, food is necessary ; even if it is not growing food is necessary, for the old parts are constantly wearing away and new parts being formed. If the cow is giving milk, the material of the milk must be formed out of the material in the blood. If the horse is doing hard work there must be material in the blood to replace the muscle that is being worn away, and also to be used up to produce the force or energy that we see resulting in work. The Waste Material. — In the burning up of food to produce warmth, in the using up of food to produce work, in the working over of material to form flesh, muscle, fat, bone, wool, or milk, there will, of course, be more or less waste or refuse material. How is this refuse material got rid of by the animal ? In three ways : by the lungs, by the skin, and by the kidneys. The Lungs. — Animals breathe in pure oxygen and breathe out carbonic acid gas and moisture. They should therefore be able to get pure air and not be compelled to breathe over again the air that has already come from their lungs, for it l63 AGRICULTURE. contains some refuse of their bodies. If we shut up an animal in a close room it will smother. The animal must have fresh air. Proper ventilation is necessary for the good health of all animals. Exposure to cold draughts, however, must be care- fully avoided. The Skin. — The small capillaries come out close to the skin, which is filled with pores or tiny openings. We may say that animals breathe through their skin, and through the pores of the skin rid themselves of a large amount of used-up or refuse matter. We help the animal, therefore, by keeping its skin clean. When we curry or rub down a horse or a cow we do for it what we do for ourselves in taking a bath. A clean skin is necessary to the health of an animal. We should keep in mind that every pore is the outlet of a little drain whereby the refuse of an animal is carried out of its system. If these little drains are choked up sickness may follow ; if they are kept open the system is helped very much in its cleansing process. The regular and proper currying and brushing of a horse means more work from the horse ; the currying and brushing down of a cow means more milk. Cleanliness always pays. Science and practice are agreed upon this point. The Kidneys. — The blood in its circulation goes to all the organs of the body, building them up and supplying ma- terial for their various uses. All parts of the body are con- stantly changing ; some quite rapidly, as the brains ; some quite slowly, as the bones. The old portions that are being replaced have to be removed. We have just above stated that through the lungs and skin carbonic gas and water are constantly being thrown off. But there are many other sub- stances, such as the nitrogen compounds and the mineral com- pounds, which cannot escape by way of the lungs and skin. How are these got rid of? The kidneys, which in human beings lie below and behind the stomach, near the back, are DIGESTION AND USES OF FOOD. 169 the organs that do this work, freeing the blood from these refuse compounds and passing them off in the Hquid excre- ment or urine. This liquid excrement, then, is a solution of material that comes from the blood, muscle, bone, etc., of the body, and, therefore, we may conclude it will contain valuable fertilizing material, more valuable as a rule than the solid ex- crement. The liquid excrement consists of the dissolved waste of the blood, muscle, bone, and other parts of the body ; the solid excrement consists of the indigestible and undigested portion of the food. None of the waste nitrogen or mineral matter of the animal escapes from the body through the lungs, but all passes off through the kidneys. Hence the great importance of carefully saving, by litter or otherwise, all the liquid excrement for use as a fertilizer. When we sell grain, hay, straw, and roots, we take away from the soil of the farm all the nitrogen and mineral matter which they contain, we really sell part of the soil upon which these foods grew. When we feed these to stock and sell the animals or their products we sell but a small portion of these soil constituents ; by far the larger portion is found in the solid and liquid ex- crement. The economy of feeding stock upon the farm lies then in the saving of all the excrement, especially the liquid, and returning it to the soil upon which the plants originally grew, and from which we wish to derive more food. Conclusions. — The uses of food in the animal may now be stated briefly as follows : 1. To produce heat to keep the body warm. 2. To produce force or energy to enable work to be done. 3. To replace the waste from all parts of the body. 4. To increase the body in bone, muscle, flesh and fat. 5. To produce milk, wool, etc. Every animal must be kept warm. Every animal does some work or uses up some energy even when standing still or lying down ; all parts of the body are constantly wearing away and 1 7© AGRICULTURE. being reformed. Therefore, first of all, food must be given for these three purposes before any increase in fat or flesh takes place, before any hard work is done, or before products such as milk are obtained. It is only from the excess of food that the fourth and fifth uses can be supplied. When we wish an animal to work hard, to increase in flesh and fat, or to produce milk we must feed liberally. Poor feeding, there- fore, will give us no return at all beyond keeping the animal alive, but liberal feeding must be done where we wish to get some return. Care of Animals. — If we leave animals out exposed to rough weather we shall have to increase the food to supply heat; if animals are compelled to work hard to get their food or are restless and excited, they must use up more food. The proper housing and protection of animals will save food, and the keeping of them in quietness and comfort will also cause a saving. Thus we see that good care means a saving of food for the first two requirements mentioned before, and is quite as important as proper feeding ; in fact good care is one of the most important parts of good economical feeding. Good feeding implies the selection of the foods suitable for the wants of the different classes of animals, the preparing of the food in suitable and attractive forms, and the proper care of the animals during and after feeding. BEES. 171 PART VI. CHAPTER XXXVI. BEES. Bees. — We can carefully observe a bee on a thistle top or a roadside flower. It will not harm us if we do not disturb it. There are two pairs of wings very thin, like a membrane, hence the bees are said to belong to the order of hyinenoptera. When not flying, these wings fold in closely together; when flying, they spread out and the inner pair hook or hinge on the outer pair, so that the bee is able to carry a heavy load. Perhaps we can see the long tongue which it can thrust away down into the cup of the flower to take up the juice or nectar. This little tongue can be twisted about as an elephant twists its trunk, and it has a sort of brush on the end with which the nectar is swept up. The nectar or sweet juice of the blossom is carried up into the mouth and from there it passes into a liltle sack called the honey-bag. When its honey-bag is full it goes home to store away this honey. If we could see its legs under a magnifying glass we would notice that they are hairy and have some hollows along the side. What are these for? We have before learned that the blossoms of flowers produce pollen. Some of this pollen the bee needs for food, and the pollen is carried home in the hollows of its hind legs. Some Fis;. 81. — A bee gathering nectar from a blossom. 172 AGRICULTURE. of the pollen will cling to other parts of the bee, and so, when it goes from one flower to another, it frequently carries this pollen to blossoms that have none of their own or that cannot use what they do have. The bees (and other insects also) in this way help to make plants fruitful, to fertilize them as we say. But there is another part of the bee that we shall find out be^ fore we desire to do so if we anger or disturb it, namely, the sting. It is found in the rear end of the abdomen, and con- sists of two long sharp lances. It can be pushed into one's hand but cannot easily be drawn out. When the bee cuts into the flesh it throws into the cut a drop of poison through the lances with which it pierces. It leaves the sting in our flesh, causes us pain because of the poison, and itself soon dies. We may then conclude that bees will not readily sting, but do so simply when disturbed and as a last resort in self-defence. The Hive. — We go to the hive and there we find perhaps 20,000 of these honey gatherers, or "workers" as they are called. Inside, if we can look through a glass side, we see one larger bee surrounded by a dozen or so of the others. This is Fig. £2. Worker. Queen. Drone. the Queen or mother bee, whose duty it is to lay eggs. There is only one Queen. After once settling down as the mother of the hive she never goes out except when "swarming,'' but day after day lays eggs, as many as 2,000 in a single day. Then we observe some others that do no work, so far as we can see, they are the " drones." The family or swarm then will consist of one Queen bee, 20,000 or more workers, and BEES. 173 500 to 1,000 drones. The Queen is the female or mother that lays the eggs, the workers are females that gather the nectar and do the work, and the drones are the males. The Comb. — Next we observe the comb. It is made up (if hundreds of cells in which the honey is being packed, and in which young bees are being hatched. In shape they are six- sided. Why six-sided? If you draw a lot of circles touching one another there will be some vacant spaces between. If you draw S(|uares or triangles ytni can fit them closely together, but there will be sharp corners to fill in. Now if you draw a lot of regular six-sided figures you can fit them all together, there will be no vacant spaces, and no sharp corners. Cells of that shape will be strongly built. In fact you cannot improve on the shape of the cell which the bee makes. The comb is made up of wax, bees-wax we call it. The bees make this out of honey, but it takes some time, and therefore bee-keepers help the bees in their work by starting it for them. They make the beginnings or foundations of the combs for the bees. These foundations are put in, and when completed by the bees can be easily taken out separately. This is one reason why we get much more honey from our hives than we woukl from the wild hives of the bees where they have to be con- stantly making the whole cells for themselves. Some of the cells are used for storing honey and pollen, and some are used by the Queen bee for hatching out the young bees. The egg is laid in the cell by the Queen. Then the workers place beside it some jelly made up of honey and pollen to be used as food. In about three days the egg hatches and a little larva appears. This feeds and grows, and in about six days fills up the cell. Then the bees put a cover or lid of wax thread on the cell, the larva goes into the second or pupa stage (see page iio) that we have noticed in connection with other insects, and in about twelve or fourteen days the perfect bee appears and comes out of the cell, a worker bee. The 174 AGRICULTURE. cells in which the drone bees are hatched are a little larger and the time to form is a few days longer. When a queen bee is required a different process is needed. Perhaps the old Queen has died or is going away with a swarm to form a new home. A larger cell than either of the others is made, the egg is laid, and a special kind of food called " royal jelly " is placed within. In less time than before the young Queen bee appears. Thus it takes about i6 days for the Queen to be produced, 21 for a worker, and 24 for a drone. There are many things in regard to the production of these three classes of bees that cannot be explained. Honey. — The bees can gather honey only while the flowers are in bloom, therefore they work rapidly and store up large quantities for winter food. In an ordinary hive a colony of bees will put away from 50 to loo lbs. The bee-keeper at the end of the season takes out part of this for his own use, leaving enough for the use of the bees until the next flowering season comes around. But what is the honey ? The bee takes the nectar or juice out of the flower ; in its honey-bag some slight change probably takes place, and in the cell, before buing capped over, more change occurs. But just how nectar becomes honey as we know it, cannot be fully explained. Bees gather honey from many different plants that blossom at different times of the year, and the honey varies in quality according to its source ; thus we have clover honey, thistle honey, basswood honey, buckwheat honey, golden-rod honey, etc. In fruit blossoming we find the bees in large numbers in the orchard, and, as before stated, spraying with poisons, such as Paris green, should be discontinued while the trees are in full bloom. Kinds of Bees. — Just as we have common cattle and also pure-bred that have been improved by care, so we have different kinds or varieties of bees. They are generally named accord- ing to the country whence they come, as English, Italian, BEES. 17 c; Syrian, Cyprian, etc. These differ just as much as Shorthorns, Jerseys and Ayrshires. Some are quiet, others are very ill- tempered. In addition to our honey bees there are other kinds of bees, such as the humble-bee, whose tongue is long enough to get into the nectar of the red clover. We have here given only a very few of the simplest facts in regard to bees. There is no part of nature that will be found more interesting or more profitable than the study of the busy bees. SwARMiNC. — In the fall of the year the wild bees complete their store of honey, packed away usually in a hollow tree. As the weather grows colder the bees go out less and less. Winter sets in and we find the bees all bunched together, clinging to one another in a half-asleep mass, a drowsy bunch that can be handled without any fear of stinging. On bright, warm days some of the bees may venture out for a while. In this dormant condition they eat but little. Spring comes on and the early flowers appear. The hive again becomes active and the hatching of the young brood begins. The old queen, with a part of the bees, starts off to seek a new home, leaving the old home for the new queen and her followers. Swarming takes place, the bees fly away in a cloud and settle in a tree probably. The bee-keeper is on the watch, he follows them and shakes them down into his basket, and places them in an empty hive, where they soon take up their regular work of storing honey. 1 76 AGRICULTURE. CHAPTER XXXVII. BIRDS. " And the birds sang round him, o'er him ' Do not shoot us, Hiawatha !' Sang the Opechee, the Robin, San^ the Bhiebird, the Owaissa, ' Do not shoot us, Hiawatha ! ' " — Longfellow. Migrations of Birds. — As winter goes and the warm spring begins, the buds show Hfe and the grass shoots up. Then we look for the return of the birds. They come back to us at first two by two, or in small flocks. Sometimes we see great flocks flying past, high over head, steering straight north for the regions where they may find food and nesting places. They went far south to escape the winter's snow and cold, and they come back to us to build their nests and rear their young. A few of the fliers may stay with us all winter long if they find their natural shelter, but most of them fly south in the fall and return in the spring. We look for their coming as we look for the spring, and we are never disappointed, though year by year we see many changes. Some birds are missed and new kinds are welcomed. The bluebirds, for instance, may disappear for a few years. We think they have been driven out or de- stroyed. If our eyes and ears are trained, however, we may see and hear them passing to new fields further north, flock after flock of thousands passing by overhead in the early morning. Uses of Birds. — Sometimes we think they do more harm than good, and we are apt to call them a nuisance. But how we would miss them! If their singing and chattering were completely silenced, we would soon wish for their return; and BIRDS. 177 we would long for a sight of them in their varied form and coloring, even if thuy did not sing for us. Many of the wild birds, the game birds, of course, supply food for man, and their usefulness no one questions. But, apart from their singing and their beauty of form and color, of what use are the other birds — the robins, the bluebirds, the yellow-birds, the blackbirds, the woodpeckers, the blue jays, the meadow larks and the very many other birds of our gardens and fields? That depends on what they feed upon. Food of Birds. — Many birds are fond of fruit and will take some of the cherries and l)erries of the garden, others will help themselves in the grain field. This, however, does not prove that they are a nuisance and should be destroyed. As a rule the birds feed upon the food which is most readily got — weed seeds, fruits, or insects. If fruit is plentiful they will take some fruit, but if insects are about they will greedily pick them up and in quantities that will astonish us. Birds that feed upon insects are called "insectivorous." Most of our common birds are more or less insectivorous, and while they do some injury by robbing the fruit trees, berry-bushes and grain fields, they do far more good by devouring great quantities of insects that if allowed to live would inflict most serious injury. The (jiily way that this can be proven by you is by carefully watching the birds as they go about through the garden, or as they carry food to their nestlings. On examining the stomachs of many birds that ar ■ supposed to be the most destructive to fruit, large quantities of destructive insects have been found. If the birds do take some fruit it must be rememt^ered that as a rule they pay well for all they take. It may be set down as a safe rule that most of our birds do more good than harm, and our aim should be to encourage them, and not to destroy them. It has been estimated that one bird will devour or destroy about 2,400 insects in a year. Even the English sparrow, blackbird, and crow are kncnvn to destroy large numbers of 178 AGRICULTURE. insects. Birds of prey, such as the hawks and owls, destroy large numbers of field mice and other vermin that are very injurious to growing crops and stored grain. Protection of Birds. — There are some birds that appear to be very destructive. Some hawks are much dreaded because they kill young chickens ; the crow, blackbirds, or bronze grakles, are the bitter enemies of many of our common birds, and crows have few friends because they pull up the sprouting corn. They take the corn at that time because it is softened in the soil and can then be eaten by them. Even crows, however, feed largely on insects when insects are to be got. The Eng- lish sparrows, also, have made themselves very much of a nuisance because they nest about the houses and barns and steal oats from the field. Even these three kinds of birds make up for some of their badness by destroying insects. One of the most objectionable birds is the cow bird or cow black- bird, which is a parasite, that is it lays its eggs in the nests of birds smaller than itself The true owners of the nest are pushed out by the intruder when hatched. What we need to learn, however, is that we should protect most of the birds rather than destroy them. Some try to en- courage the birds to nest by setting up small houses, placing empty boxes and cans in the trees, hanging pieces of twine and hair upon the fences and limbs The general rule that we should follow is — leave the birds alone, do not molest or dis- turb them, keep away from their nests. They will soon learn that they can come and go in safety and build their nests and rear their young broods without fear, and year by year they will return to their old nesting-places and will repay us for their assurance of safety. The birds are the farmers' friends, but they must be treated as friends. How many birds can you nam- and describe? What biras frequent the fields, and what birds are found along the streams and small Lkes ? BIRDS. 179 Make a list of all the birds of your locality under these heads : — Thoee that make their nest in the grass ; thos ; that nest about the house and barn; those that nest in the orchard trees; those that nest in the foliage of forest trees; those thai seek a hollow in the tree. What birds of your locality rear two broods in one season ? Which are the Vjest singers of your birds? What is t!ie difference between a bluebird and a bluejay ? Between a blackbird and a crow blackbird? Between a wren and a greybird ? Between a cedar bird and a grosbeak ? Between a barn swallow and a field sparrow ? Between a robin and a Baltimore oriole ? "It is well known that of the various groups of birds the majority live upon insects. Among the insect eaters are the fly catchers, warblers, woodpeckers, nuthatches, orioles, goat suckers, hummingbirds, tanagers, waxwings, gnatcalchers, kinglets, vireos, thrushes, wrens, titmice, cuckoos, swallows, shrikes, thrashers, creepers and bluebirds. "It is not generally known, however, that the so-called seed-eaters feed their young largely upon insects, and eat a great many themselves; nor is it realized how much good they do by eating weed seeds. Professor F. E. L. Beal has calculated that the little tree sparrow in Iowa alone destroys 1,720,000 lbs. of noxious weed seeds every year. Moreover, in summer seed-eaters eat blueberries, huckleberries, strawberries and rasp- berries, and distribute their seeds unha med over thousands of acres which would not otherwise support such growth. "After the examination of about forty birds, the only one actually sentenced to death is the English sparrow. Of all the accused hawks only three have been found guilty of "the charges made against them— the goshawk. Cooper's, and the sharp shinned —while the rest are numbered among the best friends of the fruit grower and farmer. Of the wood- peckers, the sap-sucker and redhead may be beneficial or injurious, according to circumstances, but the rest of the family are highly bencfici.d. To most of the remaining birds tried the evidence is decidedly credit il le. The crow, crow bbckbird and cedir 1 ird are acquitted, as doing more good than h .rm; and it is proved that agriculturists owe especial protection and friendship to the phcebe, kingbird, catbird, swallow, brown thrasher, rose-breasted grosbeak, house wren, vireos, cuckoo, oriole, shore lark, loggerhead shrike and meadow lark." Florence A. Merria.m, of Washington, D.C. l8o AGRICULTURE. "Within certain limits, birds feed upon the kind of food that is most accessible. Thus, as a rule, insectivorous birds eat the insects that are most easily obtained, provided they do not have some peculiarly disagree- able property. It is not probable that a bird hal)itually passes by one kind of insect to look for another which is more appetizing, and there seems little evidence in support of the theory that the selection of food is restricted to any particular species of insect, for it is evilent that a bird eats those which, by its own method of seeking, are most easily obtained. Thus, a ground-feeding bird eats those it finds among the dead leaves and grass; a fly cUcher, watching for its prey from some vantage point, captures entirely different kinds; and the woodpecker and warbler, in the tree tops, select still others. It is thus apparent that a bird's diet is likely to be quite varied, and to differ at different seasons of the year. " The practical value of birds in controlling insect pests should be more generally recognized. It may be an easy mattter to exterminate the birds in an orchard or grain field, but it is an extremely difficult one to control the insect pests. It is certain, too, that the value of our native sparrows as weed-de?troyers is not appreciated. Weed seeds form an important item of the winter food of these birds, and it is impossible to estimate the immense numSers of noxious weeds which are thus annually destroyed. " If birds are protected and encouraged to nest about the farm and garden th y will do their share in destroying noxio is insects and weeds, and a few hours spent in putting up boxes for bluebirds, martins and wrens will prove a good investment. Birds are protected by law in many states, Ijut it remains for the agriculturists to see that the laws are faithfully observed." Tkof. F. E. L. Beat., B.S., Asst. Ornithologist, Dept of Agriculture, Washington, D.C. Forestry. i8i CHAPTER XXXVIII. FORESTRY. The Primeval Forest. — What was the appearance of North America four hundred years ago, wlien it was first discovered by Columbus and by Cabot ? Let us turn to a map of the continent. Along the west coast we have the great mountain ranges, beginning at Alaska and continuing south through Mexico. These were covered with thick forests, in some places the trees being of enormous size. A large portion of this great primeval forest still remains untouched, especially in British Columbia. Then notice the mountain ranges on the eastern side. As they cross into Canada they become lower, branching into two sections, the one going north-east through Labrador and the other north-west through Ontario or off towards Alaska. In between these two branches lies Hudson's Bay. This whole eastern section was covered with a dense forest extending from Florida to the bleak lands of Labrador and away off north-west towards Alaska and the barren lands. It covered all of the Eastern States, the eastern provinces of Canada, all of Quebec and Ontario, and a part of the North-west Territories. Down through the central part of the continent stretched the prairies, treeless except on the hills here and there or along the rivers. Much of this original eastern forest has been cut away by settlers or killed by forest fires, but some still remains in the mountainous parts of the Eastern States and in the northern parts of Maine, New Brunswick, Quebec, and Ontario. l82 AGRICULTURE. Range of Forest Trees.— This great forest of eastern North America was composed of many varieties of trees, each variety growing where it thrived best. In some places they were mixed, as though scattered by mere chance ; usually, however, the different kinds were confined to certain districts where the conditions were favorable. Thus we here and there come upon a white pine belt ; in one place we find a forest of maples, in another oaks or elms. As climate and soil are the two things that largely control or determine forest growth, we may expect to find the various kinds of trees confined to certain limits. If we trace across the country a line marking the places up to which each kind of tree is found growing, but beyond which it will not grow in any very large numbers, we shall thereby get lines which mark what are known as the " northern limits " of these trees. These lines will not run east and west, nor will they be parallel in all places. The Atlantic and Pacific oceans and the inland lakes and Hudson's Bay have the effect of making them very irregular. The northern limits of the most common trees will be found to be about as follows:— Chestnut, black walnut, hickory, butternut, red cedar, white ash, beech, and basswood in southern Ontario ; somewhat further north, hemlock, red oak, sugar maple, yellow birch, red pine, and white pine ; still further north, white elm, black ash, balsam, poplar, and spruce. It must be noted that this order is not always followed, as both soil and climate have their influence, and the effect of fire has been to change the nature of the forests. As a rule evergreens will grow in colder climate than the trees that shed their leaves (deciduous), and of the latter the nut-bearing varieties are usually found in the milder climate. An interesting study is to find out the different trees growing in a locality, and to determine the nature of the soil in which they thrive; which, for instance, grow in low, damp places, and which in dry, gravelly soil, or on rocky hills. FORESTRY. 1 83 Destruction of the Forest. — What has destroyed this great forest ? First of all, the settler had to clear the soil for his roads and for his fields of grain and of pasture. In early days of settlement two of the principal products of the farm were the logs and timber from the body of the trees and the ashes made from burning the top branches and small cuttings. To-day the cutting of lumber is removing year by year large quantities of trees, but the natural growth of young trees is more than sufficient to make up for this cutting, if properly carried on. The great agent of destruction to-day is fire. One forest fire will sweep away or destroy in a few weeks in summer or autumn far more than all the lumbermen remove. The fire burns rapidly because of the inflammable material, such as resin, in the evergreens. At the same time it destroys the young sprouting seedlings and the seeds also, which would otherwise soon start a new forest that in twenty- five or forty years would replace the old forest. Benefits of Forests. — Of what use are the forests? In the first place, they are a great protection against cold winds, modifying the climate as great wind-breaks. They also hold back the snows of winter, preventing spring freshets. When the country is laid bare of its trees, the creeks and streams are full in early spring and dry in midsummer. Although the trees give off enormous quantities of water through their leaves, yet they hold back or store up in the loose leaf mold larger amounts of water. The trees, therefore, hold back the snow, and later hold back the water, and thereby save the creeks from becoming dry. They also save the hills from being washed bare. The loss of soil washings by the creeks in spring is heavy. Every spring, therefore, should be shaded by trees at its source, and every stream, no matter how small, should be protected, not alone at its source in the high lands, but also along its course, by at least a fringe of trees. 184 AGRICULTURE. In the next place, the forests are the home of birds and game, which are a source of supply of food and furs. Trees and forests also add to the fine appearance of a country, whether found along the streams and rivers or on the hill tops. Trees for all hilly country is a good rule to follow. It is there that the streams take their rise. Land there is of less value for grain crops. When we lay bare the hills we cut down the wind-breaks, we dry up the springs and streams, and we leave a poor soil, to be made poorer by the washing of the rains and the blowing of the winds. We should remember that the forest is a crop of the farm, and its nature should be considered as carefully as that of any other crop of the farm. The Forest as a Producer of Crops. — If the trees are a crop, how should that crop be harvested? We cut down all of a wheat crop at one time. If we are growing a crop of corn for green ears we do not pick all at once, but go over the field again and again, taking the ears that are full-grown and leaving the small ears to grow larger. If we were to cut down a whole forest or a wood, as we do a crop of wheat, we would have to wait many years for a new crop. But if we take out each year only the largest trees, and leave the others standing until they grow to full-size, we can harvest a crop of trees every year, and at the same time assist the smaller trees to grow more rapidly. The cutting down of trees, large and small alike, is wasteful; the proper cutting of trees, leaving the young forest to make growth, is alone worthy of the name of forestry. There is only one way in which to become acquainted with trees, and that is by studying the trees themselves as they are growing. In studying a tree the following points are to be noticed. First, as to whether it is an evergreen or whether it sheds its leaves (that is, deciduous) ; second, the general shape of the tree, whether it grows tall or spreads out, how it branches ; third, the form of its leaves ; fourth, the nature of its bark ; and, fifth, the nature and form of its seeds or nuts. FORESTRY. 1 85 Contrast the cedar and the maple ; contrast the branching of the elm and of the beech ; contrast the leaves of the maple, of the oak, and of the ash ; contrast the bark of the hickory and of the birch ; contrast the seeds of the pine and of the basswood. The Forest Tree Nursery. — Every farm should, and every school might, have a small nursery, a plot fenced off so that cattle and pigs cannot get into it, and which should be as well tended as a flower garden. Here are the instructions of a forester. Sir Henri Joly, of Quebec : — " With a little attention, it is easy to tell when the seeds are ripe. Thus, toward the end of June and early in July the seeds of the elm and those of the plane are ripe; if you sow them at once, they will shoot up nearly a foot that same summer. The seeds of the maple, ash, oak, wild cherry, and walnut mature in the autumn ; it is better to sow them immediately than to keep them in the house all winter. Sow, let us say, maple seeds half an inch deep, and others, in proportion to their size, two or three inches for nuts. Sow thickly, and after the first year you can thin them by transplanting some. After four or five years you can plant your young trees where they are to remain. You should select cloudy or rainy weather in the spring. " In many cases you can even spare yourself the trouble of sowing. When the ground is favorable in July or August, along the ditches, the woods, the fences, in the moss, in damp places, in the neighborhood of fhe elms and the planes, you will find hundreds of little shoots which have sprung from the seeds fallen from the trees ; plant them in your nursery. "The seed of the pine is very difficult to gather. Early in the spring, in the pastures near the pines, you can pull up, when the soil is damp, as many little trees as you will wish to plant; for this kind it will be better to take the precaution to shelter them from the sun until they have taken root." l86 AGRICULTURE. From this nursery you can set out a row of maples or elms along the main road and the lane, taking care to keep them well apart, so that they will branch out and not shade the road too much ; you can also plant a wind-break for the house and the garden ; you can also plant the hilly ground and protect all springs and water courses ; you can also set out a small clump in a corner of the pasture, being careful to protect it from the cattle till well grown ; you can also set out a few trees near the house, but not too near. There will be no difficulty in finding a place for every tree, and, if properly cared for, every tree thus set out will add to the value of the farm or the home. 1. How many diflferent kinds of maple, of oak, of birch, of cedar, of elm, of ash and of pine are found in your neighborhood? 2. What is pulp? What trees are used for producing pulp? 3. Which is more valuable, a pine from the open or one from a pine forest ? W^hy ? 4. Why will a hollow tree live and a girdled tree die ? 5. What causes the rings in a tree, and the grain in a board ? How can you tell a tree's age ? 6. How is maple syrup made ? When ? Do any other trees give similar products ? 7. What causes a knot in a pine board and a burl in an oak tree ? 8. What is the effect on forest growth of allowing cattle to browse and range through the wood lot. 9. What are the principal uses in manufacture of maple, ash, elm, birch, oak, hickory, basswood, black walnut, cedar, hemlock, spruce, and white pine ? 10. Explain the difference between log, timber, and lumber ; board, plank, and deal ; straight-cut and quarter-cut ; selected, mill-run, and culls. How is lumber measured ? ROADS. 187 CHAPTER XXXIX. ROADS. " A good road is one that is good in bad weather." Early Roads. — The Indians made their journeys by canoe routes and by trails. The former followed the winding streams and lakes, shortened in places by portages or "carries." The latter were narrow footpaths that wound in and out, up and down, following the easiest natural route. There was little or no attempt at making or improving the road or path. Large stones and fallen trees were avoided, not removed, and a good surface to the path was got only by long use, not by any attempt at direct improvement. The condition of the roads is a fair test of civilization —the savages do not make roads. When the settlers first came into the forest to make their homes, the first thing required was a road by which to get in to and on to the lot. This road was made as quickly and as cheaply as possible. The trees were cleared away, making the "road allowance," some of the stumps were removed, and the road was thus used in its first stage. It was found, however, that such a road was impassable and useless in the spring and fall or during heavy rains, — it needed drainage. Then followed the next improvement, namely, the cutting of a ditch on each side, the dirt from which was thrown upon the road, thereby raising the centre a little above the sides. This second stage was a great improvement ; the water drained off into the side ditches, and the roadway was kept fairly dry. The wheels of carts and the feet of horses and of oxen do not cut into the dry earth so easily as into the mud. Such a road as this we call a dirt or earth road. Many are still found, and they are 105 AGRICULTURE. the only kind of road possible in certain places, but in order to be useful they must be kept well rounded up and well drained on the sides. The greatest enemy of all roads is water, whether it is water in the material of the road or on the surface of the road. The frost can do no damage unless there is water in the road. You know that water expands when it freezes, so that when a wet road freezes it heaves, and becomes broken up. This, then, is the first principle of road-making — keep it dry by open drains on the side, or by covered tile drains on the side, or by tile drains below the road. The next principle in road-making is to get a fairly hard surface. In early days the settlers sometimes cut down small trees, and, after trimming them, laid them side by side across the dirt road. By this means there was made a surface that was hard but a little rough. Such a road, from its ribbed nature, was called a "corduroy" road. Later on, when saw- mills became common, sawn-planks were sometimes laid down, forming a plank road. The object in both cases was to get a hard, level surface. A horse can pull but a light load through loose sand or deep miry mud ; he can draw much more on a hard, level road ; he can draw still more on a level steel track. Why is this so ? Gravel RoADS.^Another way to harden the surface is to put hard, stony material upon it. First of all, good gravel may be used, and a coating of it laid along the roadway. You will at once ask as to whether loose gravel will not be difficult to drive through. So it is. Therefore we must get the gravel well packed together, and so a roller is used. After first rolling the dirt roadway, a layer of gravel is put on, and the heavy roller is again driven back and forth, every time crush- ing the gravel down a little, and packing it together a little more closely. This should be done scores of times if neces- sary. The number of times will, of course, depend upon the weight of the roller; a heavy 20-ton steam roller will not need ROADS. to be passed over the gravel as often as a 6-ton roller drawn by two teams of horses. Unless the gravel is rolled in this way, it remains loose and soft when the fall rains come on, the wheels of wagons cut through it, and mix it with the mud beneath ; and so the gravel is wasted and the road is not nearly so good as it should be. Then more gravel is put on and rolled again, and a nicely rounded or crowned surface is made which will shed the rain-water into the side ditches, and which is so hard and compact on the surface that the wheels will not cut through. But big open ditches on the side are unsightly ; they get choked up with weeds, and they are frequently dangerous to horses and travellers. They should be kept clean, of course, so that the water will not stand in them. But the better plan is to put down a covered tile drain on each side of the road, and leave only a shallow ditch above it. The grass will grow over this, and a neat roadside will result. Fig. 83. — A gravel road properly crowned, with side ditches and tile drains. In order to get a strong, tough surface, the gravel must be well packed together, that is, it must "bind." If we mix together in the road coarse gravel and fine hard stony material and soft fine dirt the road will soon become uneven. It is necessary, therefore, to have the gravel well screened ; then the coarser part should be spread on the roadway and well rolled, and the finer gravel spread upon it to fonm the surface. All soft material, such as sods and loose dirt, should be kept 19° AGRICULTURE. out of the gravel ; in short, the gravel should be as clean as possible; it should be screened, graded, and put on in layers, and should be well rolled. Stone Roads. —As a rule, gravel is more or less rounded, and therefore does not at first bind well. You know that a road could not be well made out of marbles. To bind well there must be sharp corners and rough sides on the pieces. So we find that broken stone will make a stronger and more durable road than will gravel. But we must remember the points already referred to, namely, the road must first of all be thoroughly drained, both underneath and on the sides ; the stone must be put down in courses, the largest below and the smallest on the surface, and every course must be thoroughly Fig. 84. — This is the kind of road that is made by placing loose stones on a dirt road without properly preparing the foundation— the stones sink through the mud beneath. rolled as it is laid. It is a mistake to leave the rolling until the road is all filled in. The dirt sub-soil should first be well rolled. In using broken stone care should be used in choos- ing a tough rock ; if the rock is soft it will soon be ground into dust. Tough limestone and the hard rock called trap are the best. Sandstone and most kinds of granite are too easily crumbled for use on roads for heavy travel. Now, as to the mode of building or laying a stone road. First of all, we may build the road of broken stones, none of which are over three inches in diameter, laying the stone in courses, and well packing it by rolling. In this way we make ROADS. what is called a macadani road. It is so named after a Scottish engineer, John L. Macadam, who lived from 1756 to 183O, and who originated this method of making roads. Fig. 85. — A Macadam road. We may, however, begin the road by laying a foundation of flat stones from six to eight inches in thickness, then a layer of coarsely broken stone, another layer or course of more finely broken stone, and a thin coat of fine gravel or screenings on the surface — all well compacted by a heavy roller. This kind of road is called a Telford road, from the inventor, Thomas Telford, a Scottish engineer, who lived from 1757 to 1834. Fig. 86. — A Telford road. The legal width of a country road allowance is 66 feet. The usual travel on such a road does not require more than 24 feet of this to be graded and crowned. In the centre of this graded portion the metalling (that is, the broken stone or gravel) is placed, having a width of 6 or 8 feet and a depth of 9 to 12 inches, according to the number and weight of the vehicles which will pass over the road. As the country becomes more thickly populated, and the number of vehicles 192 AGRICULTURE. using the road increases, it will be found necessary to make the metalled portion wider than 24 feet. Notes : — Broad tires should be used on heavy waggons and carts, as wheels with wide tires will not sink so readily in sand and dirt as wheels with narrow tires —in fact the wide-tired wheels have the same good effects as a roller on the surface of the road. The greatest enemy to good roads is water in the roadbed and water on the surface. Notice how a small hole on the sur- face of a road becomes larger soon after a rain. The best time to mend a road is just as soon as it needs mending. "A stitch in time saves nine." The road surface should be nicely crowned, so as to shed the water to the side ditches ^ the side ditches should be kept clean and uniform, so that Che water will run away and not stand in them; the road i:ides should be level and sloping towards the ditches, and should be covered with sod, all weeds, stumps and shrubs being cut out. The fences along the road should be kept neat and trim. If trees are planted along the roadside they should be far enough apart to allow the sunlight to keep the road dry. As a rule the roads are a sure index of the intelligence, enterprise, and prosperity of a farming community. Poor, cheap roads are a source of great expense to farmers. Good roads, well-kept, will enable the farmer to draw heavier loads in a shorter time, cause less wear and tear on vehicles, horses and harness, add much to the pleasure and satisfaction of living in the country, and increase the value of farm property. A good road brings a farmer nearer to his neighbors, nearer to market, nearer to school, and nearer to church. THE COUNTRY HOME. 1 93 CHAPTER XL, THE COUNTRY HOME. A Fine Country Home. — In the older countries of Europe most families of even moderate wealth endeavor to have two homes or residences, a city or town house and a country house. The greater pleasure, the more lasting recollections, are usually associated with the latter. When we clearly under- stand the nature and the surroundings of the rural homes, the country seats, of England, Scotland and Ireland, we do not wonder at the preference. With increased wealth, in the future a similar condition of affairs may, perhaps, result in this country, but the building up of pleasant, attractive country homes in this land need not be put off until the day of increased wealth shall make such possible to a few. Far better will it be for this country if every farmer's home can be made attractive and comfortable. Many men of the towns and cities, wearied and perplexed with the driving cares and the never-ending anxieties of their busy life, look forward longingly to a time when they can return to the country, for a part of the year at least, to enjoy the quiet, the comfort, and the health- fulness of a country home, even though it may be a very humble home. The young people of to-day will ere long be making homes for themselves ; in fact, even now they can do something towards making their homes more attractive, hence it is not out of place to make a brief study of what the ideal country home should be. Home life in the country, as in the town, is the most important factor in building up character. A nation's life is largely the combined home life of all the families that make up the nation. 194 AGRICULTURE. The House. — The house depends for its attractiveness not upon what it is made of — stone, brick, wood, logs — but upon its form, its situation and its surroundings. In deciding upon the outHne of a house both plainness and too much variation and decoration should be avoided. It should, if possible, face towards the south, to see the first of spring and the last of autumn ; it should be near enough to the road to bring passing vehicles and traffic within range, and yet not right on or against the road. If possible, from the front there should be a pleasant outlook or landscape. It should stand on rising ground, so that there will be perfect drainage away from it, and no possibility of any drainage towards it. Having selected a good site, we begin with the house, and, of course, start with the cellar. This should extend under the whole house, otherwise some of the rooms may be damp at times. The cellar should be deep enough so that one can walk about in all parts of it erect ; it should have a concrete floor, and a well-laid drain from it to keep it dry. Have windows on all sides, so that the whole cellar can be kept well aired. If it can be arranged, have a root-cellar apart from the house, say in one corner of the garden. All this means a little extra expense, but damp, musty cellars and decaying roots result in sickness, sometimes in death, and the cost of a good cellar will be money well invested. The arrangement of the rooms in the house is a matter largely of choice. There should be a large kitchen, a pantry, a dining-room, and a parlor on the ground floor. There should be also a reading-room or library or study, in which will be found the best agricultural papers, and at least a small collection of the best agricultural books and reports. Two other things should be provided for, namely, one large bow window for house-plants and a grate for a log fire. The sleep- ing rooms may be on the second floor, and, in addition, there should be a store-room and a bath-room. THE COUNTRY HOME. 1 95 So much for the inside. On the outside there should be a wide verandah with comfortable chairs. This will be found to be the summer living room. It should run the length of at least one side of the house, and, if the style of the house allow and the outlook be favorable, it should run around on a second side. Both sides will be used in different kinds of weather. Around the supports of the verandah there can be twined a climbing plant, Virginia creeper or ivy or honey- suckle or clematis or climbing rose. The Surroundings of the House. — Two great essentials to health are pure air and sunlight ; therefore, have plenty of windows, and keep all trees far enough away so that the windows will not be darkened. You wish a fine outlook from your verandah, therefore do not plant trees to hide the view. You should, or may have, a few trees along the main road and on either side of the winding driveway from the entrance-gate, but keep the front well open, so as to let in the fresh air and the sunlight, and so as to allow you to see out and away over the country. In the rear have a clump of spruce, to act as a wind-break against the cold north and north-west winds. On the side you may have a neatly-trimmed hedge of cedar, and here and there you may have a native shrub, but between your house and the road have a sloping lawn of green grass, clear of weeds, and well-trimmed. If the lawn is large enough you might have one or two shapely maples, but do not crowd out the grass or obstruct the view. And the flowers? On the side rather than in front, but choice and taste will settle where they are to go. Perhaps you can make a simple plan or sketch of a home such as we have briefly outlined. You will find that you will have to alter it to suit the general situation and lay-out of your farm, but, keeping in mind these simple principles as a guide, you can, if you will, make in time an ideal country home, which is one of the greatest blessings of any country. 196 AGRICULTURE. APPENDIX. TREES AND SHRUBS. There are special botanical names for all trees and shrubs, just as there are for other plants, such as grasses and weeds. In the following table the scientific or botanical name is put in one column and the common name in the other. In every case two words are used— the first being a noun and the second an adjective; as picea, meaning "spruce," and alba, meaning "white." In the same way, quetcus meaning "oak," quercus alba is the botanical name of " white oak," and quercus rubra "red oak." Abies bahamifera Balsam fir. Acer dasycarpum .... Silver maple. [box elder. Acer negundo Ash-leaved or Manitoba maple or Acer Pettnsylvanicuin Striped maple or moose wood. Acer rubrum Red or soft maple. Acer saccharinum Sugar or rock maple Acer spicatum Mountain maple. Aesculus hippocastantim Horse chestnut. Betu'la bitea Yellow birch. Betula lenta ... Black or cherry oi sweet birch. Betula ttigra Red birch. Betula papyrifera Canoe or paper birch. Betula popzdifolia White or grey birch. Carpiniis Americana Hornbeam or blue beech. Carya alba Shellbark hickory. Carya amara Bitter hickory. Carya microcarpa Small fruit hickory. Carya porcina Pignut. Carya tomentosa White-heart hickory. Castanea sativa ... Chestnut. Fagus sylvatica European beech. TREES AND SHRUBS. I97 Fagus ferug nea American beech. Fraximis Americana White ash. Fraxinus pubescens Red ash. Fraxinits samhucifolia Black ash. Gynnnocladus Canadensis Coffee tree. Juglans cinerca Butternut. /uhlans nigra Black walnut. Jiiniperus Virginiana Red cedar. Larix Americana Tamarack or American larch. Liriodendron tulipifera Tulip tree. Ostrya Vi7ginica Ironwood or hop hornbeam. Picea alba White spruce. Picea excelsa Norway spruce. Picea nigra Black spruce. Pinus Banksiana Cypress or jack pine. Finns mitis Yellow pine. Pinus resinosa Red or Norway pine. Pinus strobus White or Weymouth pine. Platanus occiden a/is Buttonwood or sycamore. Populus balsainifera Balsam poplar or Balm of Gilead. Populus grandidenlata ... Large toothed aspen. [poplar. Populus tremuloides American aspen or trembling-leaf Quercus alba While oak. Quercus coccinea Scarlet oak. Quercus prinus Rock chestnut oak. Quercus rubra Red oak. Quercus stellata Post oak. Quercus tinctoria Quercitron oak. Quercus 7nacrocarpa Bur oak. Salix alba White willow. Salix vilellina Yellow willow. Sorbiis Americana Mountain ash. Thuja occidenialis Arbor- vitse or white cedar. Tsuga Canadensis Hemlock. Tilia Americana Basswood or linden Ulmus Americana American elm. Ulmus fulva Red or slippery elm. Ulmus racemosa Cork or rock elm. Ulmus campestris , European elm. igS AGRICULTURE. WEEDS. NoT^ — A is for annual, B for biennial and P for perennial. Common Name. Family or Order. Scientific Name. Buttercup P Ranunculacese .. Cursed Buttercup Aj " Tall Meadow rue P' " . ' Ranunculus acris. . Ranunculus scleratus. . Thaliclrum polygomum. False Flax A Cruciferce Camelina sativa. Shepherd's purse .. .A Pepperwort Al Pennycress A Wild mustard A Hedge mustard A Worm seed mustard ... A ' Capsella Bursa- pastoris. ' Lepidium \'irginicum. ' jThlaspi arvense * Brassica Sinapistrum. ' Sisymbrium officinale. ' Erysimum cheiranthoides. Celandine P Papaveraceoe Chelidonium majus. Corn pjppy A " Papaver Rhoeas. St. John's wort.. . . P Hypericaceae Hypericum perforatum. Corn Cockle A Caryophyllaceae. . . Lychnis Githago. White Cockle ........ Bl " . . . j Lychnis vesperlina. Bladder Campion P " ... 'Silene inflata. Field Chickweed P " .. ICerastium arvense. liouncing Bet P " ... .Saponaria officinalis. Chickweed A' " . . .Stellaria media. Purslane A Portulacaceae Portulaca oleracea. Mallow P -Malvaceae Malva rotundifolia. Indian Mallow A " ... Abutilon avicenna;. Poison Sumach P Anacardiace?e .... Rhus venenata. Poison Ivy P " ... ; Rhus toxicodendron. Climbing Ivy . PI " ... . [Rhus radicans. Rabbit-foot clover. . . A Leguminosse jTrifolium arvense. Wild Tare P Black Medick A Sweet clover A Yellow Melilot A Wild Carrot . . Poison Hemlock B Wild Parsnip B \'icia Cracca. " 'Medicago lupulina. " .... .Melilotus alba " j Melilotus officinalis. UmbellifercE iDaucus carota. " . . . . iConium maculatum. " Pastinaca sativa. Evening Primrose BOnagraceos /Flnothera biennis. Willow herb P! *' : Epilobium angustifolium. Mossy Stone crop PiCrassulacese ., . . . .jSedum acre. Teasel B.Dipsacege ' Dipsacus sylvestris. Groundsel A Composite. ... ISenecio vu'garis. Ragweed A '■' LAmbrosia artemisiaefolia. Ox-eye Daisy Pi " Leucanthemum vulgare. Yarrow P " Achillcea millefolium. WEEDS. 199 Common Name. Family or Order. Tansy Ciolden Rod Cone-Flower . . . . Bluebottle Sow Thistle . . . . Corn Thistle Fireweed Burdock Chicory Dandelion Fleabane Mayweed Field Chamomile. Canada Thistle.. . Bull Thistle Bur Marigold . . . . Elecampane .... Clotbur Mullein Speedwell Neck weed Toad Flax Vervain White Vervain . . . Motherwort Catnip Self Heal Stickseed. Hound's Tongue Blue weed Figeonweed Thorn. \pple. ... Ground Cherry. . . Bindweed Dodder Milkweed Plantain Rib-grass Lamb's Quarters Strawberry Blite Russian Thistle. . Pigweed Goosegrass Black Bindweed . Lady's Thumb. . . Sorrel Common Dock . . . Compositce .P .P B .A .A .P A .B .1' .P .Ai .A .A .P .B .1 .1 .A . B .Scrophulariace; .A .A .P .P P .P p ^P B .B .B .A . Aj.Solanacece -Pj PjConvolvulaceas .A -Asclepiadaceoe PlantaginaccK V^erbenacete Labiat?e . . . Borroginaceae P P .P AlChenopodiaceoe .A .Aj . A|.\marantacea; . AlPolygonacese A .A .P .P Scientific Na.me. Tanacetum vulgare. Solidago Canadensis. Rudbeckia hirta. Centaurea Cyanus. Sonchus oleraceus. Sonchus arvensis. Krechthitis hieracifolia. .■\rctium Lappa. Cichorium Intybus. Taraxacum officinale. Erigeron Canadense. .Antnemis Cotula. Anthemis arvensis. Cnicus arvensis. Cnicus lanceolatus. Bidens frondosa. Inula Helenium. Xanthium Canadense, \'erbascum Thapsus. \'eronica arvensis. \'eranica peregrina. Linaria vulgaris. Verbena hastata. Verbena urticifolia. Leonurus Cardiaca. Xepeta Cataria. Brunella vulgaris. Echinospermum Lappula. CynogJossum officinale. Echium vulgare. Lithospermum arvense. Datura Stramonium. Physalis viscosa. Convolvulus arvensis. Cuscuta trifolii. Asclepias Cornuti. Plantago major. Plantago Janceolata. Chenopodium album. Chenopodium capitatum. Salsola kali. .Vmarantus retroflexus. Polygonum aviculare. Polygonum Convolvulous. Polygonum Persicaria. Rumex Acetosella. Rumex crispus. 200 AGRICULTURE. Common Xame. Bitter Dock Smart weed Nettle .... A . ...F Wild Leek Bulrush . .. P Chess . . A Foxtail A Barnyard Grass . . . Witch Grass Wild Oat ...A . .A . ..A Couch Grass . . . P F.\.MILY OR Order. Scientific X.\me. Polygonacese " Urticacese Lil aceae Cyperaceas Rumex obtusifolius. Polygonum hydropiper. L'rtica dioica. Allium trie ceum. .Scirpus lacustris. Graminese Bromus secalinus. Setaria glauca. Panicum Crus-galli. Panicum capillare. .\vena fatua. .A4jropyrum repens. SPRAYING MIXTURES. The spraying of trees and bushes is done mainly for three purposes : I, to pievent and destroy the leaf-ealmg insects ; 2, to prevent and destroy sucking insecis ; 3, to prevent and destroy the germs of plant diseases. Poisons such as Paris Green (which is a compound of arsenic) are used for the first, kerosene (coal oil) emulsion for the second, and copper sulphate for the third. As a rule the first and third are combined. Bordeaux Mixture. Copper sulphate (or bluestone) 4 pounds. Lime (fresh) 4 " Water 40 gallons. Place the copper sulphate in a coarse bag and hang it in 5 gallons of water. Slake the lime in 5 gallons of water. Then mix the two and add the other 30 gallons of water. Use only wooden vessels. Pans Green solution is made by stirring up I pound of Paris Green in 200 to 300 gallons of water (200 for apple trees, 250 for plums, and 300 for peaches), adi about 4 gallons of milk of lime. When the Paris Green and Bordeaux mixture are to be used together to check the insects and disease at the same time, make the Bordeaux mixture as above stated and add 4 oz. of Paris Green to the 40 gallons of Bordeaux mixture. Kerosene Emulsion. Hard soap ^2 pound, or soft soap, I quart. Boiling water (soft) I gallon. Coal oil 2*gaIlons. After dissolving the soap in the water, add the coal oil and stir well for 5 to 10 minutes. When properly mixed, it will adhere to glass without oiliness. A syringe or pump will aid much in this work. In using, dilute with from 9 to 15 parts of water. Kerosene emulsion maybe prepared with sour milk (i gallon) and coal oil (2 gallons), no soap being required. This latter will not keep long. r o • — ^ r. 00