390 Bibliographical Notice. 



Paracolletes metallicus (Smith). 

 Males. Waipara, New Zealand, Nov. 21 (Brittin). 



Hal ictus aerarius, Smith. 

 Males from Kobe, Japan (Baker). 



Chehjnia elegans (Cresson). 

 Estes Park Village, Colorado, June {Hazel Andrews). 



Osmia pentstemonis, Cockerell. 



Peaceful Valley, Colorado, at flowers of Pentslemon, 

 July 5 (Cockerell). 



Osmia hendersoni, Cockerell. 

 Tolland, Colorado. 



BIBLIOGRAPHICAL NOTICE. 



Life and Letters of Sir Joseph Dal ton Booker, O.M., O.O. S.I. 

 Based on Materials collected and arranged by Lady Hooker. 

 [With nine] Portraits and Illustrations. By Leonard Huxlev, 

 author of 'Life and Letters of T. H. Huxley,' etc. London: 

 John Murray, 1918. 2 vols. 8vo. i., pp. si, 516 ; ii., vii, 509. 

 366'. net. 



Amongst the methods of writing a biography there are two which 

 are pre-eminent — one, the strictly chronological, which leads the 

 reader along as the subject lived, and enables him to trace the in- 

 fluences which moulded the life as they occurred, and the other, 

 which may be termed the episodical method — by describing certain 

 episodes of the life, and treating them fully, disregarding any over- 

 lapping of dates. The present work is largely on the second plan, 

 probably wisely chosen, but having the disadvantage of rendering 

 the sequence of dates at times somewhat difficult to follow. 



Born in 1817 at Hales worth, Suffolk, of parents and grandparents 

 of Norfolk birth, and having a botanical atmosphere from his 

 early days, the future Sir Joseph Hooker passed his boyhood, 

 University career, and early training in Glasgow. Four years on 

 H.M.S. ' Erebus' in Antarctic Seas were followed by service on the 

 Geological Survey as botanist, and then came a still more important 

 journey in India, particularly amongst the Himalayas in Sikkim. 

 Here his work was so thorough that, besides his large collection of 

 plants and seeds, the map of Sikkim which he plotted proved of 

 invaluable help to the British military expedition of 1903. 



