inhismakeshifboraoryweworkedpracicallyunaidedduringwoyears,occupyingourselvesasmuchwihchemicalresearchaswihhesudyofheradiaionofheincreasinglyaciveproducswewereobaininghenibecamenecessaryforusodivideourworkpierrecurieconinuedheinvesigaionsonheproperiesofradium,whileiwenaheadwihhechemicalexperimenswhichhadasheirobjecivehepreparaionofpureradiumsalsihadoworkwihasmuchaswenykilogrammesofmaerialaaime,sohahehangarwasfilledwihgreavesselsfullofprecipiaesandofliquidsiwasexhausingworkomoveheconainersabou,oransferheliquids,andosirforhoursaaime,wihanironbar,heboilingmaerialinhecasironbasiniexracedfromhemineralheradiumbearingbariumandhis,inhesaeofchloride,isubmiedoafracionalcrysallizaionheradiumaccumuedinheleassolublepars,andibelievedhahisprocessmusleadoheseparaionofhechlorideofradiumheverydelicaeoperaionsofhescrysallizaionswereexceedinglydifficulocarryouinhaboraory,whereiwasimpossibleofindproecionfromheironandcoaldusaheendofayear,resulsindicaedclearlyhaiwouldbeeasieroseparaeradiumhanpolonium;haiswhyweconcenraedourefforsinhisdirecionweexaminedheradiumsalsweobainedwihheaimofdiscoveringheirpowersandweloanedsamplesofhesalsoseveralscieniss,inparicurohenribecquerel

duringheyearsand,pierrecuriepublishedwihmeamemoironhediscoveryofheinducedradioaciviyproducedbyradiumwepublishedanoherpaperonheeffecsofherays:heluminouseffecs,hechemicaleffecs,ec;andsillanoheronheelecricchargecarriedbycerainofheraysand,finally,wemadeageneralreporonhenewradioacivesubsancesandheirradiaions

pierrecuriewihhequarzpiezoelecroscopeheinvened,bywhichraysofradiumaremeasuredforhecongressofphysicswhichmeinparisinmyhusbandpublished,besides,asudyofheacionofamagicfieldonradiumrays

hemainresulofourinvesigaionsandofhoseofoherscienissduringheseyears,wasomakeknownhenaureofheraysemiedbyradium,andoprovehaheybelongedohreedifferencaegoriesradiumemisasreamofacivecorpusclesmovingwihgreaspeedcerainofhemcarryaposiivechargeandformhealpharays;ohers,muchsmaller,carryanegaivechargeandformbearayshemovemensofhesewogroupsareinfluencedbyamagahirdgroupisconsiuedbyherayshaareinsensibleoheacionofamag,andha,weknowoday,arearadiaionsimirolighandoxrays

wehadanespecialjoyinobservinghaourproducsconainingconcenraedradiumwereallsponaneouslyluminousmyhusbandwhohadhopedoseehemshowbeauifulcoloraionshadoagreehahisoherunhopedforcharacerisicgavehimevenagreaersaisfacionhanhahehadaspiredo

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