I








J




.I




is formed,  Nevertheless, it can be deduced that combination has occurred
between the benzenearsonic acid <and the mtibody! becmse on addjt$on of an
azoprotein containing the pazobenzenearsonic acid group  no ?reclPltate




group, which differs from the first only in having a chlorine atom in
place of the hydrogen atom.  Landsteiner and his collaborators fo?md
that aati-bchloro-+aminobenzoic acid











lb