Newton's Philosophiae Naturalis Principia Mathematica provides a coherent and deductive presentation of his discovery of the universal law of gravitation. It is very much more than a demonstration that 'to us it is enough that gravity really does exist and act according to the laws which we have exp[...]

This text provides a concise yet comprehensive review of common neurologic disorders. The pathophysiology, presentation, diagnosis, and management of these entities is discussed in detail in a clear, easy to understand format. The focus is on patients presented with vertigo, disequilibrium, hearing [...]