Chemistry

     CH3_ _    _    _    _ _ CH3
	/   \/   \/   \/   \
       |    |    |    |    |
	\ _/ \ _/ \ _/ \ _/
	/  \ /  \ /  \ /  \
       |    |    |    |    |
    CH3_\ _/ \ _/ \ _/ \ _/_ CH3

1.          PhD
   	 |
   	/ \
          | O |
   	\ /
   	 |
   	 PhD 
   

   Paradox
   (para - Doc's)

2.          PhD
   	 |   PhD
   	/ \ /
          | O |
   	\ /
   

   Orthodox
   (ortho - Doc's)
3. hijklmno
   H to O, (as in water)
4. HiHoAg
   Hi Ho Silver!!!

5.       MD                  
          I
         / \
        | O |        
         \ /\        
   	  MD
   

   Metaphysicians

6.        O   O   
       ---I---I-----O-C3H7   
          I   I              
         /\  /\
       /    \   \    
   

   Propylpeople ether

7. 	 4
   	 |  
   	/ \ 
          | O |__4
   	\ /
   

   Metaphor
   (meta - 4)