K)0 2 NOTICES OF NEW BOOKS. 



The Microscope in the Mill. The Formation, Chemistry, and Pesti*- 

 of Corn, Meal and Flour. By James Scott. 1920. x + 246 pp. 

 Published by the Northern Publishing Co., Ltd., 17 Goree 

 Piazzas, Liverpool. 



An Introduction to the Chemistry of Plant Products. Yol. L, On 

 the Nature and Sigiiificance of the Commoner Oro-anic Com- 

 pounds of Plants. 'By Paul Haas and T. G. Hill. 'li)21. 3rd 

 edition, xlv + 414 pp. Published by Longmans, Green and Co., 

 39 Paternoster Row, E.C.4. Price 16s. net. 



The British Fresh-water Rhizopoda and Heliozoa. Vol. Y., Heliozoa. 

 By G. H. Wailes. 1921. sii + 72 pp. and 10 pis. Published 

 by the Ray Society. 



