1  2  3  4 

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2  _  _  _  _

3  _  _  _  _

4  _  _  _  _


ACROSS
1)  humble in spirit or manner; suggesting retiring mildness or even cowed submissiveness
2)  an inflammatory disease involving the sebaceous glands of the skin; characterized by papules or pustules or comedones
3)  the protruding part of the lower jaw
4)  an open box attached to a long pole handle; bricks or mortar are carried on the shoulder


DOWN
1)  austrian physicist and philosopher who introduced the ____ number and who founded logical positivism (1838-1916)
2)  the repetition of a sound resulting from reflection of the sound waves
3)  a town in north central oklahoma
4)  range of what one can know or understand

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