It may seem odd and an apparent contradiction since viruses cannot be seen by the naked eye and can only be examined under a high power microscope. Most of these viruses are beyond the range of even the best microscope. The limit of size of the particle which we can see with an ordinary […]

It was stated that one of the outstanding characteristics of viruses is the fact that no one had ever succeeded in making them grow in a nutritive broth or on an agar “slope” after the manner of bacteria and then examined under a high power microscope. If this is the case, how then can […]

Stanley’s discovery gave a great impetus to chemical research on viruses. It was not long before other viruses were isolated in a crystalline state some of which gave rise to very beautiful crystals. The appearance of the virus in the crystalline form is best viewed with the use a high power microscope such as the […]

One disease which is considered as the leading dreaded disease in the world that has claimed many lives is known as the big “C” or cancer. What do we mean by the words “cancer,” “malig¬nant tumor,” or just a “growth”? It has been described simply and clearly in the following words: “In the very […]