Is it possible to remove rows that are blank in some column?

Suppose I have

a 4
b 6
8
d 2
e 9

And want to remove rows with a blank in column 1 and collapse the whole array to
get:

a 4
b 6
d 2
e 9

--
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
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