JACK'S LETTERS TO WALLICH, 1819-1821. 217 



I perceive you quote Boemer, Systema Vegetabilium vol. IV. 234 

 I hope you have taken measures to have a copy of that work for 

 me. DeCandolle 235 is another desideratum. We are busy makings 

 a final clearing of all zoological subjects, when I think all arrears 

 may be considered brought up, and we may make a fresh start. 

 I have been long intending a trip into the interior, but the number 

 of things that have occurred to keep me employed, has prevented 

 it as yet, and the season is now so far advanced, that a very short 

 one will be all that can be attempted. However, I am in no want 

 of materials, so it does not signify. Let me know how your letters 

 had best be addressed. 



My best regards to Mrs. Wallich; Sir S. and Lady Eaffles join 

 in the same to you both. 



Thine ever, 



William Jack. 



P.S. Ladv Gi-bbs tells me that they have made a discovery in 

 England that all tropical bulbs will thrive in the open air if sunk 

 in a pond, near the surface in summer, and deeper in winter, so 

 as to be out of the reach of the frost, and with greater luxuriance 

 than in hot houses. She therefore begs me to send her bulbs and 

 handy seeds ; may I request you to remember her in this way at 

 the dispatching season. The bulbs of course, dry in a box. I 

 am glad we sent her some last year, they will be acceptable. 



The stones you mention may remain with you. 



There are some large Mangosteen plants going up to Lady 

 Hastings, who I hope will send them to the garden, as I think they 

 are large enough to thrive. I mean also to send to the garden^ 

 a few plants of our r.oble Datura arborea. 230 



W. J. 



No. 9 Bencoolen, 



19th September, 1820. 

 My dear Wallich, 



My last two letters went by the Venus ; I now send the re- 

 mainder of my Pentandrian descriptions. Since I wrote them I 

 have somewhat altered my plan in regard to my descriptions, and 

 have determined on forthwith printing here everything that I have 

 worth it. That once done, it is secured and the number of copies 

 being very small I can make use of any of them again when nec-es- 



234. J. J. Eoemer and J. A. Schultes, Systema vegetabilium, Stutgart T 

 1817-1830, seven volumes. 



235. A. P. De Candolle, Eegni vegetabilis systema naturale, Paris,. 

 1818-1821, two volumes. 



236. Datura arborea, Linn., is a native of the Ancles: but it has long 

 been in cultivation in the East. 



R. A. Soc, No. 73, 1916 



