154 



ARTICLES IN JOURNALS. 



the reason of their arrangement in regular longitudinal rows, hoth 

 of which iDoints are insufficiently explained. Later in the book 

 is an excellent short account of pollination, and the differences 

 in structural mechanism between wind- and insect-pollinated 

 flowers. A sight of the pollen and stigma of typical examples 

 of each by aid of the microscope would forcibly drive home these 

 differences. 



But nowadays a text- book plays a subordinate, though an 

 important, part in the study of science. The teacher must always 

 supplement, and generally finds it necessary to correct, thereby often 

 seriously bewildering the student, and causing him to lose all faith 

 iu what should be a useful guide. If he adopts Mr. Groom's work, 

 he will find the second function unnecessary. The book deals 

 entirely with the seed-plants, and is divided into three parts — 

 General Morphology, Classification, and Physiology. We con- 

 gratulate the author on the abundance and excellence of the 

 figures ; a great many of them are new. Especially helpful are 

 the large clear floral dissections and diagrams in the systematic 

 portion ; our only fear is lest the student should think it unnecessary 

 to refer to the flower; the teacher must insist with the author (p. 2) 

 that he " have before him a specimen of the plant described," and 

 " constantly examine and refer to it." The pictures of simple 

 apparatus for illustrating points in physiology will enable the 

 learner to repeat the experiments. The glossary at the end of the 

 book will be useful ; as may also the forty-eight-paged catalogue of 

 Messrs. Bell's educational works, though personally we should 

 much prefer not having them bound up with the book. Finally, 

 to assure him of our goodwill towards his book, we will tell Mr. 

 Groom that we have already recommended it to several students. 



A. B. Rendle. 



ARTICLES IN JOURNALS.- 



Annais of Botany (March). — D. H. Campbell, ' Development of 

 flower and embryo in Lilcea ' (3 pi.). — W. & G. S. West, ' Observa- 

 tions on the Conjugate ' (2 pi.). — H. M. AVard, 'A Violet Bacillus 

 from the Thames ' (1 pi.). — A. H. Church, 'Polymorphy of Cutleria 

 multijida ' (3 pL). — M. Dawson, ' On the structure of an ancient 

 paper.' 



But. Centralblatt (Nos. 9, 10). — F. Ludwig, 'Die pflanzenlichen 

 Variationscurven und die Gauss'che Wahrscheinlichkeitscurve.' — 

 (No. 9). A. Weberbauer, ' Zur Anatomic der Kapselfriichte.' — 

 (No. 10). E. H. L. Krause, ' Floristische Notizen : Graser.' — 

 (Nos. 11, 12). F. G. Kohl, 'Ueber das Chlorophyll und seine 

 Derivate.' — L. Kny, 'Vermogen Chlorophyllkorner im Lichte 

 Sauerstoff aus zuscheiden ? ' 



* The dates assigned to the numbers are those which appear on their covers 

 or title-pages, but it must not always be inferred that this is the actual date of 

 publication. 



