Recently, many authors have focused on the question of symmetric positive solutions for ordinary differential equation boundary value problems, for example, see (Avery & Henderson, 2000; Çetin & Topal, 2012; Graef & Kong, 2008; Hamal & Yoruk, 2010; Jiang, Liu & Wu, 2013; Luo & Luo, 2010; Luo & Luo, 2012; Lin & Zhao, 2013; Tersenov, 2014) and the references therein. In (Avery & Henderson, 2003),...

• The American Osler Society held its first formal meeting in 1971, an event that will represent not the beginning of this essay but, rather, almost the end. Though some portion of the founding story has been told by Alfred Henderson, and again by Henderson and McGovern, I believe that there is a duty for any society – particularly an historical society – to record its own origins as thoroughly...

The most comprehensive series dealing with the intracranial complications of transorbital stab wounds is that of Birch-Hirschfeld (I 930), who collected I 69 cases from the literature and added three of his own. Smaller series have also been described (McLure and Gardner, 1949; Schneider and Henderson, 1952; Kjer, 1954; Bulluck, Baker, and Henderson, I959; Unger and Umbach, I962; Bard and Jarre...

The Henderson apparatus (D. W. Henderson, J. Hyg. 50:53, 1952; 0. T. Miller and G. G. Gremillion, In Technical Manuscript 39, U.S. Army Biological Laboratories, Fort Detrick, Md., 1963) has become standard equipment for exposing a variety of animals to microbiological aerosols. When small animals such as mice are used, it is advantageous to aerosolize many animals in a single study. The standar...