28 SCIENTIFIC CATALOGUE. 



Oliver Works by DANIEL OLIVER, F.R.S., F.L.S., Professor of 

 Botany in University College, London, and Keeper of the Herba- 

 rium and Library of the Royal Gardens, Kew : 



LESSONS IN ELEMENTARY BOTANY. With nearly Two 

 Hundred Illustrations. Twelfth Thousand. iSmo cloth. 4$-. 6</. 



This book is designed to teach the elements of Botany on Professor 

 Ilenslow s plan of selected Types and by the use of Schedules. The 

 earlier chapters, embracing the elements of Structural and Physio- 

 logical Botany, introduce us to the methodical study of the Ordinal 

 Types. The concluding chapters are entitled, ' ' Ho w to Dry 

 Plants " and " How to Describe Plants. " A valuable Glossary is 

 appended to the volume. In the preparation of this work free use 

 has been made of the manuscript materials of the late Professor 

 Henslow. 



FIRST BOOK OF INDIAN BOTANY. With numerous 

 Illustrations. Extra fcap. 8vo. 6s. 6d. 



This manual is, in siibstance, the authors ' ' Lessons in Elementary 

 Botany" adapted for iise in India. In preparing it he has had in 

 view the want, often felt, of some handy resume of Indian Botany, 

 which might be serviceable not only to residents of India, but also to 

 any one about to proceed thither, desirous of getting some pre- 

 liminary idea of the botany of the country. It contains a wel"- 

 digested summary of all essential knowledge pertaining to Indian 

 Botany, wrought out in accordance with the best principles of 

 scientific arrangement.' 1 '' Allen's Indian Mail. 



Penrose (F. C.) ON A METHOD OF PREDICTING BY 

 GRAPHICAL CONSTRUCTION, OCCULTATIONS OF 

 STARS BY THE MOON, AND SOLAR ECLIPSES FOR 

 ANY GIVEN PLACE. Together with more rigorous methods 

 for the Accurate Calculation of Longitude. By F. C. PENROSE, 

 F.R.A.S. With Charts, Tables, etc. 410. I2J. 



The author believes that if, by a graphic method, the prediction of 

 occultations can be rendered more inviting, as %vell as more expedi- 

 tious, t/ian by the method of calculation, it may prove acceptable to 

 the nautical profession as well as to scientific travellers or amateurs. 

 The author has endeavoured to make the whole process as intelli~ 

 gible as possible, so that the beginner, instead of merely having to 



