ithoErigist to the Middlese,z. Hospital. INTRODUCTION.TIIM investigation is tlic work of three differerit groups of workers, cach group independently snbniitting its report on the completion of the whole series. It was only when the investigation was finished that the clinical, bioclicniical, and bacteriological results were compared. I n this paper are considered the remote results of gastreetomy only. Precise operative tec*hnique, immediate mortality, and post-operative treatment have not been dealt with ; nor have the theories of the causation of ulceration, and the relative merits of the various other types of SUI gic:al operations perfornied for the relief or benign ulceration of the stoniach and duodenum, been disciissed. The paper is divided into four scctioiis~~histoIical, clinical findings, laboratory findings, and, lastly, the commentarj. which expresses the considered opinion of the three groups of workers.

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