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About The Scio tribune. (Scio, Linn County, Or.) 1919-19?? | View Entire Issue (Nov. 19, 1925)
THE SCIO TRIBUNE PAffC SIX ■ BOLL-WEEVIL A Pe-sf, But Not Altogether an Evil Oiagram Shewing Arrangement f*r the Prevention of Oeclllatlon In R. F. Beta. Using th* “Anostat' Combination Control. By HARRY J. MARX. In New Yer* Her*ld-Tr«bun*. By JOHN DICKINSON SHERMAN OME day the bug« will get ua-If we don't watch out. Ho »ay the entomologlsta. And other aclentlais «ay the bug men are quite right What they mean 1» that the locusts, grssaiiop- ¡■era. tmetles. borer*, wee vil» and other | tests of the world threaten to eat ua out of I.Oil«.. and home and starve ua t<> death. They hold that the Inaect world la man'» most dangerous enemy—*o dangerous that only by eternal vlgt lane» and unceasing warfare will ilia human race be able to survive In the meantime Uncle Sam. Ento mologist. Is authority for the official statement that a billion dollar annual loaa Is Indicted u | h » u our gardeua, fields. orchards and forests by a hun dred or mure Imported Insect penta. Mind you. Uncle Sam says. "Import ed peats" Offhand one would say that the earliest of these Imported ¡testa was the ll«-«alan fly. which was brought over In the Itevolutlon by the mercenaries hired by Georg* III from a German prince We treated the lie»- slana rough- you remember what George Washington did to them at Trenton--and the fly they brought In their straw packing has since de stroyed enough of our wheat to pay the German war debt. There haa Is-en a succewslon of these Imported ¡testa ever al nee So now- adays Uncle Kam has a small army at work flghtlng (hem. In the Agricul- turn! department, for example. tie has established the bureaus of plant Indus try and entomobtgy and the Insecticide and fungicide l«»ard. Through them ha watches the ¡torts to keep new ¡teats out. lie scour* the earth for psnt resisting plant* and for Insect* that prey on pe«t* that prey upon ua. lie experiment* with Insect poisons. A 'Jfl acre farm which Includes In «erf ¡■eats among It* chief crop* 1» operate«! at Vienna. Va. The American people pay some fi4O.OUH.iXM) a year for Insec ticide* and fungicides with which to combat crop |>e»ts, fungous growths and household vermin At the Vienna farm the ¡«ests ar* ¡tenanted to reach their full measure of destructiveness; whereu|w>n they »rs Subjected to treat ment with commercial Insecticide* and fungicides to tletrrmlne ths effective ness of such preparation*. Right now there Is a big controversy going «n over th* Importation of nar cissus bulbs. Uncle Kam says that after January 1 Importation will lie restricted. Why! Because these bulb* are frequent and abundant car rier* of two peats; bulb flies and the NampSM eel-worm Th* former eala <>nlona and the latter onion*, clover, rye. oats and potatoes. Both have al- reedy gained a fo<>th<4d here. Of all these Imported ¡vesta the one to get most frequently ender the lime light Is ths Mexican cotton boll weevil. Scarcely a newspaper but Baa news of It* doing* or what la Ivelng done to It. For eiampl*. an Item of current osws ta that an agricultural extenalon aervlc* survey show* the cotton fields of North Carolina to be more heavily Infestmi this year than lust. In some cases a» high as flu ¡M-r cent. Another tell* of th* discovery of a germicide that will rid the Mouth of th* ¡H-st by a prisoner tn th* Atlanta Federal ¡wnllrtitiary who had bes-n a Baltimore scientist of note A third la that the chemical warfare service of the United State* army haa town turned loo** on the boll weevil with orders to fln l some poison that will put It out of business for all time. Probably one reason for the ¡<cr»l»t ent throwing of the limelight on th* boll weevil la th* fact that cotton I* on* of our big crop». Motu* years It equals In value th* corn crop. Th* «-otton belt extend* from the Atlantic to Texas and Oklahoma; probably It will be exten<l«-«l clear to th* Pacific. And this American belt grows 54 per cent of the world'* cotton. Our ex ports of cutton are about twice those of the rest of the world and w* uae !k> ¡ver cent of the world's production. The boll weevil (Anthonomus gran dla) la a gray Inaect about the alie of a housefly. Iloth adult» and grub* In jure the «-Alton th* former by feed ing. puncturing and laying eggs; the latter l>y feeding on th* content* of the boll*. The l>oll weevil first entered the l'nlte«l State* from .Mexico In ltC. getting a foothold In southwestern Texas, Infestation spread »lowly hut surely. Climatic conditions made 1MI5 a year of catastrophe tn the matter of Inft-stallon; no less than MI.S40 square miles of cotton raising territory were reported In lm«l sha¡>*. All told, th* boll weevil has cause«I th* loss of many million bales of cotton; also It has largely reduced at times the area devoted to cotton. And yet the Mexican boll weevil, tn It* own way a top notcher a* a crop destroyer, haa not proved an unmlxed evil to all of the cotton-raising South On the contrary, on* Alqbama town la actually grateful to It and ha* shown that gratitud* by erecting tn th* pub lic square a monument In It* honor. Tlvl* town la Enterprise ami th* In scription on the monument rends; la l'r-.f»un<i Appreciation of THE Rot.l. WEEVIL And What It Ha* Dos* a* th* Herald of Prosperity Thia Monument I* Erects* llr th* Cttlsen* of Enterprise. Coffss Coanty. Alabama Rack In BH3 ‘‘Cotton Was King" In »’offe* county Then cam* th* boll weevil and cut down the yield 1») per cent. In 101« the whole countryside *M wrrvked and rulm-d. The wolf waa at th* door, for planter* knew starts then radltrfrrquency amplifica tion can be used to full advantage. It«atstance is *n tna*i>arabl* fac But this control must not be such as tor In all electrical circuit* It may to add resistance In the tuned circuit*. Plate Voltage Control. mH t>* thcro in th* form of a rheostat, OBclUatlon can be effectively pre- potentiometer or other [dec* of re- slManro »¡«¡«nratua. but every part of . vented If a variable resist a are is con- the circuit. whet tier It Is just copper nect*d In serlt-s be tween th* plate or wlr*. connections, condensers, colls or primary coIla of the radio frequency any Oliver unit, ha» *otn* resistance transfurmen ami th* “B” battery to value. It may be great or small, a* prevent «vacillation by reducing th* th* rose may be. but It exist* and I* plate voltage on the radio-frequency a factor In the drciilt. Copper wlr* 1« tub«-«. Now, by connecting a on«-half • good conductor, meaning It* resist- mfd. condenser between the "B" ter- •he* ta low, while a non.-ondenner sim mlnal of tbe primary on the radio-fre ply mean* something that has ■ very quency transfortnero and the fllament terminal of the tubes, this artificial high resistant-«. Present «lay radio apparatus I* ao resistance «-an be shuntt-d out of tbe designed as to reduce aa far as prac tuned circuit. Thia condenser closes tical all resistant-« in th* tuned cir the plate circuit to the fllament of ths tube foe tbe radiofrequency current*, cuits in other words, on account of the con Oscillation. denser these currents <k> not have to Th!» elimination of surplus real st ¡vans through the resistance—hence anc* permit* much sharper tuning the resistance does not affect the tun- •nd. therefor*. Improve* selectivity . Ing and selectivity. But in radio-frequency circuit* it mul- This variable resistance provides a tlplle* th* tendency of tube* to go Into mean* of reducing th* plate voltags oscillation, producing th* assortment ■nd therefore control* o*ciltatl«m. of squeal*, howls and whistles which Thl* mean* of controlling oscillation not only come out of th* loud »peaker, wa* first utilised rommerclally by H but bark up and go out tn th* air to F. Andrew* tn the dereanadyn* re play Ivavoc with (b* neighbors' recep ceiver. tion. Ths •'Awoetat." ¿Jhe <dd and ln<-«rrect practice was Engineers have now developed ths to add a potentiometer In th* sec- > . use of thia by-passe«) plat* circuit ro- otidnry circuit of tbe radio-frequency , slatanc* a* a volume control, a* well nothing of diversified crops and the •’•gro This was equivalent to re- I ' as an oeclllatlon control. Thl* I* don* lodi weevil had <kitni)rd King Cotton. placing the resistance back Into th* by using an extremely high variable Write* Carl W. Dipman in Good Hard apparatus. It reduced th* oscillation resistance having a maximum valu* of ware (New York): tendency, but fl likewise killed the several megivhma. The circuit I* juat Hut tt>* elty official* and ths busts»»« selectivity that was dealrod and tn ad tlv* same as for the control of oscilla msn got <o*»«h»r Th»y dsetd«* some dition materially reduced tb* volume. tion. Tb* flrst ¡«art of the rralatanc* thing m*»t bs dons and done quickly Resistance should not b* added where can be use«! for «vacillation control, and They saw farmers leaving ths farm* and ths young men flocking to th* It becomes an Integral ¡«art of tbe the high resistance part for control- «tiles They »aw a dying Enterprise radio frequency circuit*. Ing volume. Volume can thus Ive ad Ko they began yteachlng diversifica Tbe fundamental raua* of oscilla justed without the slightest distortion, tion- f<-r the llr»t time In the history tion Is due to a groat extent to th* •nd with great saving In "B" battery of that »action Within one year Cof- fea county broke the world'» record In amount of voltags semes the plat* current. the yield of peanuta. for a elmliar are*, circuit. If thl* voltag* la controlled A combination control which may and also In the return In dollars and *0 (list It esn t>e sdjusie«! to a value be used for thia pnrpo** is known a* rents fur bogs snd cattle shipped Ths just below the point where oeclllatlon ; th* "anostat." farmer* raised their ewn hay. corn, potato»» *nd other produce for homo consumption, which they bought pre viously. when they raised only cotton. Speaker Connections Coffee county has now become a flour “Kilocycle'* It Taking ishing cattle and hog market, as wall Place of “ Wave Length ” That Will Vary Pitch a* a peanut market Alabama now Belts to th» Mld-lle West Before. It A new word, "kikvcycl*,“ gradually Many radio listenera find that th* bought only Is taking tbe place of th* word "w*v* pitch of the music received I* abov* Ry Itlt and 1*1». this entire section length" In th* vocabulary of radio or below normal. An lm|»edanca had learned the loeeon of diversifica tion. As a result. the whole county ten*. placed in the ap*ak*r circuit will rats* Th* Ivepsrtment xf Commerce ha* WM rolling tn prosperity It was not until after the coming of the bug that explained that th* marking or logging the pitch. With a awltch to cut tn con Enterprise saw paved etreeta and side <>f dials la found to have certain ad denser* of different sixes as shown, th* walk*—paved at a coat of many thou pitch may b* varied at wilt sand* of dollars The hardware stores vantages In th* new term "kllocycl*." , did a flourishing business and ths sama which means frequency, or tb* num Three changes are shown, the upper waa true of other stores Several small ber of wave« per aecond. position with th* smallest condenser factories camo to the elty and the poet "Just a* a musician." the depart giving the higher pitch. The lower office rose from fourth class to second class llandooms school buildings and ment said, "can vary th* number of position with Impedanc* an«l condene- flns churches, hospitals and beautiful oeclllatlooa of bls vocal cords, but | era cut out and battery feed through homes were erected All because the cannot control the length of th* sound farmers learned to rates something be ! waves, so a radio station can vary i sides cotton la It surprising, thea. that on one of the principal streela of tbe number of «veclilatluna per aecond, ! this little city was erected. In Decem and let th* wave leugtlvs be what they ber of 1*1*. a monumental fountain to will. the memory of the Mexican boll wee "To obtain the frequency when th* , vil? This monument stands today as the only monument over erected to the wave length In meter* la known divide memory of a peat, on the American iisi.tssi by th* wav* Irogth tn meter*. continent. Ths mneh-dreaded bolt weevtl proved to bo a blessing la dis The answer la in kllocyt lee. Likewise, : th* other way round, divide fiuu.uuv by guise Whet. It wa* fllacovsrcd that calcium th* number of kilocycle* to get ar**nat* wa* Just about th* beat com met era." bative ngulnat th* boll weevil, thou Minds of "rrmedlce" wer* taken Into Tube I* Not Governed by Switch to Cut In Condsnasr* ta ths South. Som* of them wrro worse Control Bitch. Brilliancy of Filament than th* boll weevil, Unde Sam** In- •ectlclde board wa* kept busy reme- Tb* effective operation of any dying tbs rovnedie*. Now they have vacuum tub* la not governed by th* the »¡waker gives th* lowest tone Th* tww-n pretty well regulated. Mo all th* brilliancy of tb* filament. Aa a mat •witch require* two arm*, th* contact cotton planter* are busy these tlaya ter at t»ct. on* Sbtvuld never ua* th* edge of th* lowest being filed down to give clearance from tbe upper. Th* dusting their Held* by man power, brilliancy of the filament as an Indi Inner contact« stwuld b* smaller than mill* ¡lower, and even by airplane. cator that th* tub* la working prop th* outer and »¡M««ed as clooe as p«j*- erly. Mtvdern vacuum tubes have a It'* a fair guess that th* I h >I| w**vll •lbl* t* each other.—Radio Digeat. will com* to a violent end before long coating placed over tbe filament which —and by poison. Maj. Gen. Amo* A. greatly ln<re«*es tbe electron emis Seldom Work Together Fries, head of tbs chemical warfare sion. The filament merely serve* aa a Radio frequency and regeneration aervlc* of th* army, ba* established ■ heater to generate tbe emlaalon of On* will find that with seldom work together for th* slmpl* research laboratory at the Georgia ex- electrons ¡■•riment station at Griffin, lie ha* tubes using the coated filament tb* rv-a»-«n that th* »et become* unstable cotton planta. He la paying a cent Ilf* of the tube* 1* not governed by and extremely bar«I to handle Adding apiece for live, vigorous hoi I ««-evils , th* filament burning out, but by th* only one stage of radio frequency to In lot* of a thousand or more, He ha« loaa or deterioration of th* coating on aa ordinary regenerative »et la a pur* at bl* command a myaterion* lot of the filament. When this happens th* wast* of time, a* th* regeneration ac deadly potaona and gases developed la 1 tubes will remain lit. but no signal* tion la fully aa good as on* stag* of radio. th* World war. And be Ls out to get i wlU b* beard. th* boll w**vtL