| OCR Text |
Show Drouths of 18th 18thCentury 18thCentury Century Tracedin Traced Tracedin in Rings of TreesHanover Trees TreesHanover Hanover , N . H-Drouths H Drouths HDrouthsthat H . - Drouths DrouthsI Drouthsthat Drouthsthat I that troubled farmers halfa halfcentury half a acentury I RevolutionI century before the Revolution Revolution- Revolutionary Revolutionary Revolutionary - ary war have left their records recordsclearly recordsclearly recordsclearly clearly written in the rings ofNew of ofNew ofNew New England trees , , Prof Prof.Charles ProfCharles . I Charles J . Lyon of Dartmouth Dartmouthcollege Dartmouthcollege Dartmouthcollege college has found . A tree ring rmg represents the amountof amount amountof amountof of wood grown in a given glven season season.In seasonIn . . In a good year it is thick , , in a adrouthy adrouthy adrouthy drouthy or otherwise otherwlse bad year It ItIS itis itis IS thin thm . . Long past alternations ot of otgood ofgood ofgood good and bad years have been read readsuccessfully readsuccessfully readsuccessfully successfully in m other parts of theUnited the theUmted theUnited Umted United States , , particularly the theSouthwest theSouthwest theSouthwest Southwest , , but hitherto hltherto the records recordsfrom recordsfrom recordsfrom from New England have been con con- conI confused confused - I fused and contradictory"Making contradlctory"lbkmg contradictory contradlctory contradictory"Making "Making Making "l\bkmg "l l bkmg " \ Sense " of WeathcrI WeatherBy Weather Weathcr WeatherBy I By studying studymg a larger largcr number nwnber of oftree oftree oftree tree stumps , in several differentlocations different differentlocations Ilocahons differentIlocahons locations in m New Nev . Hampshire and Ver Ver- VerI Vermont Vermont Vermont - mont , Professor Lyon has at last lastbeen lastbeen lastbeen I been able to "make make "ma.e ma.e mae " } . . sense " " out outof outof of early New England weather . . "Many Many " years since smce 1600 1G00 are foundto found foundto foundto to have been outstanding outstandmg tor for thegood the thegood thagood good moisture m01sture conditions avaIlable avaIlablefor availablefor availablefor for plant growth , . " . he states . "Dur Dur "Dur- "DurIng "During "During " - ing the same three and a thirdcenturies thIrd thIrdcenturles thirdcenturies centurles centuries , , . about twice as many manyyears manyyears manyyears years are marked by actual physi phYSI- phYSIolog1Cal physiological physiological - ological olog1Cal : drouth which retarded retardedplant retardedplant retardedplant plant growth throughout the enhre entire enhrearea entirearea entirearea area . Cyclic Cycllc effects are not evi eVI- eVIdent evident evident - dent . . " |
