for the first time in the history of logic, abd al razzaq al-jili (d. 570/1174), in the treatise al-lame fi al-shakl al-rabe, dealt with the modal syllogisms of the fourth figure. previous to him, dinha, the priest, and ibn salah al-hamadani had discussed the non-modal moods of the fourth figure. jili’s treatise deals only with simple modalities and ignores the complex ones. his pupil, fakhr al...

The paper addresses two difficulties that arise in Treatise 1.2.5. First, Hume appears to be inconsistent when he denies that we have an idea of a vacuum or empty space yet allows for the idea of an “invisible and intangible distance.” My solution to this difficulty is to develop the overlooked possibility that Hume does not take the invisible and intangible distance to be a distance at all. Se...

son, m it.c.s.i. London : Swan Sonnenschein & Co., Ld., 1901. Price 7s. Gd. It is somewhat remarkable that, though five years have now passed since the present pandemic of plague first made its appearance at Bombay, no book on the subject lias hitherto appeared based upon Indian experience. Reports written by medical officers, civilians, and even military officers we have had in abundance, but ...

Over a period of about twenty years, Maxwell’s determination and unification of the equations of electricity and magnetism evolved from his first paper on the subject in 1855–56, “On Faraday’s Lines of Force,” to the publication of his Treatise on Electricity and Magnetism in 1873. Notwithstanding the many historical accounts and textbooks devoted to Maxwell’s work, I have not been able to find...

Before examining what a molecular orbital is, it is good to refresh our memories with respect to the types of bonding that can occur between atoms when molecules are formed. Basically there are two prevalent types of bonding that occur in organic chemistry. (There are several ways that bonding can occur but most of these ways can be classified into two very broad categories.) The first category...

We have no hesitation in recommending this Treatise on Plague by Dr. W. J. Simpson as the most complete and comprehensive volume dealing with the subject which has yet seen the light. The book lias been written at the request of the Syndics of the Cambridge University Press with the object of bringing within a modern compass the principal facts concerning plague from its historical, epidemiolog...

I.M.s. (retd.). The writer says he has "elaborately followed those methods of treatment to which general consent or weighty testimony has given a standard place." The first chapter begins well with an account of fever, and the problems of immunity. The chapter on tubercle is full of information and is less a string of prescriptions than many others are. We note even here the love of new drugs w...