AGRICULTURE
How are the earthworms of service to the soil? 575.
How many tons of soil in an acre of garden will pass through the bodies of earthworms in a year? 575.
What are the most dangerous worms? 2012.
Where are the trichina worms found lodged in pork? 1942.
What do the trichina worms do after they get into the human body? 1942.
How do hogs get trichina into their bodies? 1942.
What insect kills poultry and domestic animals? 286.
What is the difference between the red rust on wheat stalks and the black rust on wheat stubble? 17.
What are the rusts and smuts that destroy cereals and higher plants? 17.
Is there any successful way to combat the rusts? 1649.
Why do fungus plants attack other plants? 724.
What are parasites? 1420.
What very small plant causes souring in milk and fruit juices, fermentation and decay, pear-blight and melon-wilt? 155.
What diseases may be caused by milk? 1824.
What is the chief value of cooking food? 1824.
Why is it necessary to sterilize all articles used about milk? 1225.
What treatment is recommended for plants suffering from downy and powdery mildews? 1224.
What treatment is good for the foliage and fruit of pear trees suffering from pests? 1435.
What is blight? 227.
How may blights be roughly classed? 227.
What causes $30,000,000 damage yearly to cereals in the U. S.? 227.
What are some of the typical plant diseases? 227.
What is the treatment for potato-scab and smuts? 227.
What splendid results were shown by the Department of Agriculture in treating leaf-blight? 227.
What is the formula for the Bordeaux mixture? 247.
What are spraying mixtures? 1804.
How is the ammoniacal solution of copper carbonate made? 1804.
How many sorts of insecticides are used for spraying? 1804.
How are sucking and biting insects killed? 1804.
What is paris green made of? 1804.
How is kerosene emulsion made? 1804.
How is carbon bisulphide used for cut-worms? 1804.
How are the seeds of the poison ivy scattered? 1511.
How did the poison oak gets its name? 1511.
How may poison sumac be known from other shrubbery? 1511.
What plant eaten for greens has very poisonous roots? 1511.
How is flour sometimes made poisonous? 1511.
What deadly poison is contained in the seeds and leaves of the black cherry? 1511; acid 7.
How may children be poisoned by jimson weed? 1512.
What hawk destroys innumerable grasshoppers and mice? 850.
Why should the duck-hawk and the pigeon hawk be destroyed? 850.
What hawk is the dreaded enemy of poultry? 850.
Why should the chicken hawk never be injured? 850.
What hawk is the greatest of all destroyers of noxious four-footed animals? 850.
Should the shooting of hawks be encouraged? 850.
Why should the owls be protected? 1403.
Which owl is the greatest enemy of rats? 1403.
What fierce owl has given a bad name to all the family? 1404.
What is the food of the screech owl? 1404.
What owls are savage little creatures, often killing each other in fight> ing? 1404.
What bird destroys large numbers of the codlin-moth? 419.
Why should woodpeckers be protected in every possible way? 2107.
What bird may well be called caterpillar bird? 485.
How are caterpillars protected from the birds? 350.
What bird eats the seeds of weeds? 1195.
2301
