“…Nearly all searches for circulating complement-fixing antibodies to nervous tissue have been made in sera from cases of disseminated sclerosis; positive results in some cases have been claimed by Sachs and Steiner (1934), Roemer et al (1953), Frick (1954, Delank (1957), andRaskin (1955), though these results were obtained only by using alcoholic extracts of formalinfixed brains from cases of disseminated sclerosis as antigens. Detailed investigation of comprehensive control groups of normal subjects or other diseases were not reported by these authors, nor were any attempts made to assess the organ-specificity of the reaction.…”