At the turn of the twentieth century, William Bateson [3] studied organismal variation and heredity of traits within the framework of evolutionary theory in England. Bateson applied Gregor Mendel's work to Charles Darwin [4]'s theory of evolution [5] and coined the term genetics for a new biological discipline. By studying variation and advocating Mendelian genetics, Bateson furthered the field...

IT is written in the Bible that wve should take time "to praise famous men and our fathers that begat us." This year-the centenary year of the Ulster Medical Society-seemed an appropriate point of time for such remembrance and reflection. I chose, therefore, the name of one, William Whitla, a past President and benefactor of our Society, as the subject of my address. On 11th December, 1933, Sir...

Franklin William Stahl studied DNA replication, bacteriophages, and genetic recombination in the US during the mid-twentieth and early twenty-first centuries. With his colleague Matthew Meselson, Stahl performed an experiment called the Meselson-Stahl experiment, which provided evidence for a process called semi-conservative DNA replication. Semi-conservative replication is a process in which e...

Renowned physician and scientist William Harvey [4] is best known for his accurate description of how blood circulates through the body. While his published work on the circulation of blood is considered the most important of his academic life, Harvey also made significant contributions to embryology [5] with the publication of his book Exercitationes de Generatione Animalium [6] in 1651. In th...

W. H. Harsant, who died on 10th February, at his Clifton residence, in his eighty-third year, was born at Epsom, a?d educated at the City of London School. Entering Guys Hospital, he qualified as L.S.A. in 1873, the year following he took the M.R.C.S., and was appointed House Surged1 and afterwards Resident Obstetric Officer at Guy's. Leaving London, he was appointed House Surgeon at the Bristo...

William Parry-Jones, who died in July at the age of sixty-two, was Professor of Child and Adolescent Psychiatry at the University of Glasgow and Honorary Consultant to both the Greater Glasgow Mental Health Services Trust and the Royal Hospital for Sick Children, Yorkhill. A most distinguished clinician and teacher, Parry-Jones was also a productive and influential historian of psychiatry. His ...

A connection between the separability and the countable chain condition of spaces with L-property (a topological space X has L-property if for every topological space Y , separately continuous function f : X ×Y →R and open set I ⊆R, the set f −1(I) is an Fσ-set) is studied. We show that every completely regular Baire space with the L-property and the countable chain condition is separable and c...

P ULMONARY ARTERY aneurysms are relatively rare lesions. One hundred and fifty-two cases have been found in world literature. The purpose of this communication is to review briefly available information on the subject and to report a case in which successful surgical treatment has been achieved. Boyd and MeGavack,' in 1939, reported 111 cases of pulmonary aneurysm proved at necropsy. In 1947, D...