Some simple typo/spelling fixes.

There are more of these coming - this is just my first batch.

lib/world/mob/118.mob

@@ -60,7 +60,7 @@ A little shadow-baby kicks restlessly within its cot.
 shadowy limbs flail and kick randomly as its tiny muscles strengthen themselves
 slowly.  It is impossible to tell by its little porcelain face whether it is
 male or female, but its little navy jumpsuit is distinctly boyish.  The only
-thing unusual is its ghostly transparence, fading in and out of visibility like
+thing unusual is its ghostly transparency, fading in and out of visibility like
 a flickering shadow.
 ~
 10 0 0 0 0 0 0 0 0 E
@@ -93,7 +93,7 @@ A tiny humming-bird flits rapidly about.
 ~
    This minute little creature is barely the size of a ping pong ball, tiny
 glittering wings beating so rapidly they can only be seen in a blur.  A long
-slender beak curves delicately from its irridescent green head, shimmering blue
+slender beak curves delicately from its iridescent green head, shimmering blue
 feathers continuing down its body.
 ~
 72 0 0 0 0 0 0 0 0 E
@@ -348,7 +348,7 @@ An insect flits unobtrusively amongst the shadows.
 ~
    This little jewelled insect shimmers shades of green and blue, its dark body
 glossy and segmented.  Two sleek silver-webbed wings extend from either side of
-its back, several wirey black legs curled cautiously close to its abdomen.
+its back, several wiry black legs curled cautiously close to its abdomen.
 ~
 254152 0 0 0 0 0 0 0 0 E
 10 17 4 2d2+100 1d2+1
@@ -626,7 +626,7 @@ dark serpent~
 the dark serpent~
 A dark serpent writhes along the ground.
 ~
-   Shimmering black and undulating slowly, this mesmerising serpent weaves along
+   Shimmering black and undulating slowly, this mesmerizing serpent weaves along
 the ground like the shadow of some dancing flame.  Two evil emerald eyes seem
 uncannily intelligent as the creature surveys its surroundings, a bright ruby
 tongue flickering out in a gentle hiss.
@@ -659,7 +659,7 @@ T 11884
 #11839
 ghostly girl~
 a ghostly girl~
-A ghostly girl fades in and out of existance.
+A ghostly girl fades in and out of existence.
 ~
    Pale and partially transparent, this little girl looks just as though she
 were just about to hit her teen years.  Some strange event has frozen her in
@@ -679,7 +679,7 @@ a cheerful young woman~
 A cheerful-looking young woman smiles as she looks around.
 ~
    Smiling gently, this young woman's face is relaxed and care-free, a hint of
-mischief and humour dancing in her large blue eyes.  Long wisps of wavy brown
+mischief and humor dancing in her large blue eyes.  Long wisps of wavy brown
 hair trail down her back, drifting in front of her face as she wanders,
 examining everything curiously.
 ~