The same worker undertook to determine whether flies are able to transmit leprosy. He experimented with five species found in Honolulu,--_Musca domestica_, _Sarcophaga pallinervis_, _Sarcophaga barbata_, _Volucella obesa_ and an undetermined species of _Lucilia_. The experiments with _Musca domestica_ were the most detailed. From these experiments he concluded, first, that all of the above-named flies, when given an opportunity to feed upon leprous fluids, will contain the bacilli in their intestinal tracts and feces for several days after such feeding. Second, that considering the habits of these flies, and especially those of _Musca domestica_, it is certain that, given an exposed leprous ulcer, these insects will frequently convey immense numbers of lepra bacilli, directly or indirectly, to the skins, nasal mucosa, and digestive tracts of healthy persons. Additional evidence along this line has recently been brought forward by Honeij and Parker (1914), who incriminate both _Musca domestica_ and _Stomoxys calcitrans_. Whether or not such insect-borne bacilli are capable of infecting persons whose skin and mucosa are thus contaminated, Currie was unwilling to maintain, but he concludes that until we have more accurate knowledge on this point, we are justified in regarding these insects with grave suspicion of being one of the means of disseminating leprous infection. Various students of the subject have suggested that bed-bugs may be the carriers of leprosy and have determined the presence of acid-fast bacilli in the intestines of bed-bugs which had fed on leprous patients. Opposed to this, the careful experiments of Thompson (1913) and of Skelton and Parkham (1913) have been wholly negative. Borrel has recently suggested that _Demodex_, may play a rôle in spreading the infection in families. Many other insects and acariens have been suggested as possible vectors, but the experimental data are few and in no wise conclusive. The most that can be said is that it is quite possible that under favorable conditions the infection might be spread by any of the several blood-sucking forms or by house-flies. Verruga peruviana VERRUGA PERUVIANA is defined by Castellani and Chalmers as "a chronic, endemic, specific, general disorder of unknown origin, not contagious, but apparently inoculable, and characterized by an irregular fever associated with rheumatoid pains, anemia, followed by granulomatous swellings in the skin, mucous membranes, and organs of the body." It has been generally believed by medical men interested that the comparatively benign eruptive verruga is identical with the so-called Oroya, or Carrion's fever, a malignant type. This view is not supported by the work of Strong, Tyzzer and Brues, (1913). The disease is confined to South America and to definitely limited areas of those countries in which it does occur. It is especially prevalent in some parts of Peru.