Ilyphagus Chamberlin, 1919 includes abyssal, fragile benthic species. Most species have large cephalic cages but chaetae are brittle and easily lost which may explain why the original definition included species with a cephalic cage or without it. The type species, Ilyphagus bythincola Chamberlin, 1919, together with another species (Ilyphagus pluto Chamberlin, 1919) were described as lacking a...

A revisionary checklist of the Sesiini of southern Africa is presented. All known genera of the region and their type species are redescribed. The following genera are placed in Sesiini for the first time: Alonina Walker, 1856; Anaudia Wallengren, 1863; Austrosetia Felder & Felder, 1874; Megalosphecia Le Cerf, 1916 and Vespanthedon Le Cerf, 1917. The genera Cicinnoscelis Holland, 1893 rev. stat...

This paper demonstrates that there is a discrepancy between the ideas expressed in Lindahl (1919) and the current-day definition of Lindahl equilibrium. It describes how the ideas expressed by Lindahl (1919) developed into the equilibrium concept for public good economies that now carries Lindahl’s name. The paper also touches on a seemingly forgotten equilibrium concept for public good economi...

The venereal disease morbidity in Sweden to-day shows a strange stability in the number of reported cases. The frequency trends of the different diseases since 1919 show congruent variations. The position to-day is difficult to explain and a comparison on an international level would be of great interest. Since January 1, 1919, every physician diagnosing a new case of venereal disease in a cont...

The 1918-1919 influenza pandemic was the most devastating epidemic in modern history. Here, we review epidemiological and historical data about the 1918-1919 influenza epidemic in Spain. On 22 May 1918, the epidemic was a headline in Madrid's ABC newspaper. The infectious disease most likely reached Spain from France, perhaps as the result of the heavy railroad traffic of Spanish and Portuguese...

The feather mite Plesialges mimus Trouessart, 1919, briefly described from the White-browed Babbler Pomatostomus superciliosus (Vigors & Horsfield) (Passeriformes: Pomatostomidae), is only species of genus 1919. In this work, I redescribe based on type specimens, transfer it into Hemialges 1895, and provide with valid name (Trouessart, 1919) comb. n. syn. synonymized Hemialges. A new diagno...

Ephemeral fever or thn:.e-day-stiffsickness of cattle has been known for nearly a century, and has been described in East Africa (Schweinfurth, 1867), Rhodesia (Bevan, 1907), South Africa (Theiler, 1908), Indonesia (Merkins, 1919 ; Burggraaf, 1932), India (Meadows, 1919), Japan (Futamara, 1922), Palestine (Rosen, 1931), and Australia (Mulhearn, 1937). During recent years world-wide surveys on t...