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Mr. J. Phillips's Paper on the Geology of the Vale of Pickering has 

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 Mr. Tredgold's Theory of the Resistance of Fluids, in our next. 

 Dr. Forster's Journal of the Flowering of Spring Plants, in our next. 

 Mr. Ma gcou gh's Paper has been received. 



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A POPULAR EXPOSITION of the EFFECT of FORCES applied 

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By DAVID RANKINE, Esq. 



London: printed for Longman, Rees, Orme, Brown, and Green; 

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SYSTEMATIC MORALITY ; or, a Treatise on the THEORY and 

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