Show valte white mice serving in chemical tests insecticide shower evaluates an ait gid bid style etyle phonograph rigged up to give ve a rev nev revolving olvina shower bath vita to a walta mouse is helping test new che chemicals for effectiveness in stable fly control the mice are ara re pinch hitting for dairy cows in making the tests says the US dopart department part ment of agriculture the old phonograph was one that played wax cylinder records the test mouse Is confined in a screen cage that replaces the old record holder the mouse is rolled around foa several times under a sprayed solution of the new chemical and then ta Is rolled under an in air stream until dry ab the tha test comes the tho next day in another cage with 20 stable flies if as many as four of the flies succeed in attacking the mousa mouse without being driven off or poisoned the chemical is not regarded as its bortl worth a tuil full scale test on an a cow this ls Is the first time white mice nave have been used in just this kind of experimental work iee Ire federal deral derai entomologists are search ing actively for a spray that will protect animals from attack by stable flies and other bloodsucking blood sucking files flies and mosquitoes recent becent experience peri ence has proved abundantly how profitable it is for farmers to protect cattle from the torment of fly time and thus avoid the sum mer slump in milk production and gains in weight of animals on pasture this search calls calis for trials of hundreds of chemicals many of these are new synthetics soil protection AN OF bno ano grasses wilu WILL youn eom MOM RAWS legume raj gri CROPS S K pelting rains may be a soil xon destroyer rather than a farm blessing unless your land has a protective umbrella over ever cov cover er crops beating rains on bare land break the surface soil soll into small particles these particles quickly fill the pores pokes of the surface soll the surface forms a hard bard crust water cannot soak in instead it runs over the surface the farm land then suffers a double loss it loses needed moisture for crops and it loses valuable topsoil top soil soll the middle west soil improvement committee suggests these steps for protecting your soll soil and giving your crops better use ol 01 the rains you get I 1 use a crop cropping hing system that gives your soil soll as continuous cover as ax Poss possible ikle throughout the tee year 2 thick growing grasses and deep rooted le legumes gurnes give the best beal cover 3 small grains following corn help keep the land protected 4 if winter wheat or rye is not feasible a good covering can be had by mashing down imm corn stalks or soybean tops legumes like alfalfa and sweet lover slover prevent washing away loil their prying taproots open th 4 mil joil so to rain soaks in and Is held hel for crops legumes well fed with phosphate and potash fertilizer add life ilfe giving organic matter land should be fumed under for new legumes when corn is to follow first sweet clover it is advisable to get the ground turned under before the isea growth of the legume remove too much moisture form the soll this tip comes from D L I 1 gross nebraska university e extension x t e n s i c r agronomist he advises however not to plow under the clover betor new crown shoots get to a leese a 0 four to six inches earlier plow inri frnk may easy not riot kill the legume |