- Women's measurements
- Big Mac
- Brain membranes
- The Number Three in American Culture
- Nina, Pinta, and the Santa Maria
- Three Furies
- Pythagoras - three is the perfect number
- How many triangles?
- Trinity symbol
- Simon Cowell: You Never Want The People That You Work With To Do Well
- Threes.com featured on the BBC2
- id, ego, superego
- Third Eye - Pineal Gland
- Featured Article - Allen H. Merriam
- Empirical rule - The 68-95-99.7 Rule
- Three Foil Cross
- Three Baskets
- Bible threes
The brain and medulla spinalis are enclosed within three membranes. These are named from without inward: the dura mater, the arachnoid, and the pia mater.
The dura mater is a thick and dense inelastic membrane. The portion which encloses the brain differs in several essential particulars from that which surrounds the medulla spinalis, and therefore it is necessary to describe them separately; but at the same time it must be distinctly understood that the two form one complete membrane, and are continuous with each other at the foramen magnum.
Third issue, and again I think it is important to note, anyone can make a mistake and any administration can make a mistake once in a while, but this is just a long train of abuses, an unbroken chain of following special interests rather than the health of the American people.
We are considering a paper or ebook version of the Book of Threes. Please let us know if you have any interest in this or if you can facilitate the new versions. Regards. Michael Eck