Head pressure can result from headaches or ear infections, but it can also signal a more severe condition, such as a concussion or tumor. It may occur with other symptoms like dizziness. A number of ...

“ELEMENTS OF HYDROSTATICS” is a subject the limits of which are sufficiently well known to require little definition. In the present instance it includes a fairly complete treatment of centres of ...

MR. MURPHY has rendered useful service to science teachers by the publication of the solutions of the exercises and problems given in Mr. Magnus's widely-known volume. These problems cover the whole ...