Age (Max Age): Is only an approximate indicator.  There is a very small chance that a character could die before that age, but as one approaches the age listed, the chance of dying increases. 
ExFt (Experience Factor): The higher the number, the more experience is needed to make a level. 
Stats & Alignments: The numbers under the stats are in a low/high format.  For example: Str 7/19 means that a character of that race cannot start with a Strength of less than 7, nor greater than 19.  You may not raise a NATURAL stat more than 5 above the maximum listed above.  G, N and E (Good, Neutral and Evil) represent the alignments the specified races can be. 

Race Abilities and Modifiers 
 

Size: The size of a character affects how well they do in combat and in other situations.  Larger characters tend to be harder to kill while the smaller characters are harder to hit.  Also, your point of view depends on the character size – if you don't want to see huge monsters from their knee level, don't play as a Dwarf. 

Race Statistic & Resistance Chart 
Many races are naturally resistant to the elements (e.g. Fire, Cold, etc.) and other forms of attack (e.g. Poison, Disease, Stone, etc).  Below is a chart that shows the natural resistances (if any) of each race.