“…More over, if non-precipitating antisera were really univalent, on the basis of the Lattice Hypothesis (81), they would also be expected to be non-agglutinating. The consensus of investigators who have applied these methods to the sera of allergic individuals is that the antibodies which were hemagglutinating apparently were not of the sensitizing but of the " blocking" type (68,70,73). In line with the latter observation is the ability of hemagglutination to detect antibodies for insulin in the sera of insulin-resistant diabetics (14,15).…”