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We remark in conclusion that the example I of an asymptotic resolvent makes it possible to verify effectively if the conditions for generation of a class Co semigroup by the d operator a(s)-j-fs in the space C(R) are fulfilled. LITERATURE CITED I.Yu. M. Vuvunikyan, "Generation of semigroups of endomorphism distributions of a convex space," Dok!.

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Dissociative recombination afCH* is studied by using the multichannel quantum defect theory (MQDT). The relevant electronic states were calculated by adopting the self-consistent field (SCF) and the configuration mixing ( C M ) methods. Particular care was taken to represent correctly the diffuse character of the excited states, especially of the two-electron excited states. The dissociative state coupled with the initial channel was found to cross the lowest potential of CH* near the left turning point of the first excited vibrational state. We took into account both the p n and d n partial waves ofthe incident electron in the MQDT treatment. For this purpose. we modified the MQDT formulation by Giuiti so as to fully describe the angular parts. The rate constant obtained is 1 . 1 2~ IO-'cm's-' at 120 K, which is about one third of the experimental value of Mitchell andMcGowan. The contribution of the d a wave was found to be comparable to that of the D n wave.