_Measures for Sanitary Police._ Make it _compulsory to report_, under penalty for failure, all cases of strangles, or of horses with nasal discharge, or submaxillary swelling. Forbid removal from the stable, or secluded enclosure, of all horses, etc., suffering in this way or which have been pronounced by the official veterinarian to have strangles. Provide for _exclusion of all other solipeds_ from such _stables_, or from _contact_ or _dangerous proximity_ to animals held in them, also from _infected yards, parks, cars, boats, etc. Close public drinking troughs_ during an epizoötic; let each owner use his own bucket. Circumstances may demand closure of public feeding stables as well. _Forbid_, under penalty, _sale_, _exposure_ or _movement_ on any _public highway_ or _unfenced place_ of any infected (diseased or exposed) soliped. Enjoin _certificate of sanitary conditions of stable and stud_ with each animal sold. _Close dealers’ stables_, or forbid any sale from them until all infection has ceased and the buildings have been thoroughly disinfected. Compel thorough _disinfection of stables, yards, cars, boats and other public conveyances_ that may be open to reasonable suspicion of infection. _Immunization._ An attack renders the subject immune, but this may be early overcome by marked change of location, and exposure to a virus of greater intensity or modified quality. Besides the crude and reckless Russian method already referred to, direct inoculation of the virulent products has been often resorted to from the time of Gohier onward, in the different countries of Europe. By selecting the matter from the abscesses or nasal discharge of a mild epizoötic, and preserving the inoculated subjects in clean, dry, pure aired stables, on nourishing diet, and under the best conditions of hygiene, a fair measure of immunity was conferred with absolutely no loss. The same as after casual cases, second attacks will sometimes be shown, but even in severe outbreaks, of a less violent type. The pus from the abscess, or the preceding exudate in the swelling may be simply rubbed on the nasal mucosa, or injected subcutem in another part of the body. In many cases there follows merely a local cellulitis, while in others the general infection leads to the nasal discharge, with or without the submaxillary abscess. This method is open to the individual owner where no concerted effort is made to _stamp out_ the infection. When, however, police measures for suppression are in force, it must be strictly prohibited, or adopted only under official control, and with absolute seclusion and thorough disinfection.