CONTENTS. 



PAGE 



Linaria Cymbalaria . . . . . . . , . . 193 



The Pliotography uf Histological Subjects . . . . . . 205 



Puzzles in Palaeontology . . . . . . . . . . 216 



The Structure! of Flowers with reference to Insect Aid in their 



•Fertilisation . . . . . . . . . . . . 225 



The Microscope and how to use it . . . . . . . . 238 



Reports of Societies . . . . . . . . . 248 



Reviews . . . . . . . . . . . . 250 



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