886 Da. JOHN L1N1>LEY. 
lectures were remarkable for clearness, conciseness, and profuse illustration. 
He had very early formed a plan for a * Genera Plantarum/ which should em- 
body all the improvements on the Jnssieuan arrangement introduced by 
Erown, De Candolle, and others, as well as his own views. Seeing, however, 
that the task would be far greater than he had conteniplatedj he gave a sketch 
of his ideas of arrangement in the ' Introduction to the ^Natural System 
of Botany' (1830), in the * Nixua Plantarum' (1833), and in the 'Key to 
Structural and Systematic Botany' (1835). Soon afterwards, on the an- 
nouncement of a 'Genera Plantarum' by Endlicher, he finally gave up all 
idea of preparing one himself, and embodied the result of his preparatory 
labours in his ' Natural System of Botany,' or second edition of the introduc- 
tion published in 1836. This is perhaps the most carefully elaborated of all 
Lindley'a works, and suggested to Endhcher the issue of his * Eucliiridion 
Eotanicon' (1841) ; this in its turn supplied several of the ideas carried out by 
Lindley in expanding his ^Natural System into 'The Vegetable Kingdom* 
(1816). 
The ' Outlines of Botany ' appeared first in 1830 ; its principal contents, 
modified and rearranged, together with a revision of the ' Nixus Plantarum,* 
formed the ' Key to Structural and Systematic Botany,' which was translated 
into several foreign languages, including Hungarian, and subsequently enlarged 
in a new edition under the title of 'Elements of Botany' (1841), He had also, 
in 1832, published a more detailed and comprehensive work, entitled ' Intro- 
duction to Botany,' which went through two editions^ and was the foundation 
of his subsequent shorter elementary works. In 1829 appeared the ' Synopsis 
of the British Flora/ in whicli the British flowering plants were arranged 
according to the Natural System, The ' Flora Medica' was published in 1838 
A work on a similar subject, ' Medical and Economic Botany,' made its ap- 
pearance eleven years later. The ' School Botany,' which in its improved form 
has gone through several editions, was first published in 1839. A work with 
a similar object was published in 1837-8, in two volumes, under the title of 
' Ladies' Botany.' In 1837 appeared a Monograph on the Victoria regiay of 
which twenty-five copies only were circulated. These were by no means 
Lindley 's only works. The greater part of the descriptions in Loudon's ' En- 
cyclopaedia of Plants ' were drawn up by him. He conducted the whole of the 
'Botanical Kegister,' except dui-ing the first few years ; and, with very little 
assistance, 'Lindley and Paxton's Flower Garden,' besides contributing to 
several of Paxton's works. The botanical articles in the * Penny Cyclopeedia ' 
down to the letter R, and a 'Treatise on Botany,' published by the Society for 
the Diffusion of Fseful Knowledge, were from his pen ; besides parts of Sib- 
thorp's ' Flora Graeca.' From 1S31 to 1837 he was engaged with William 
Hutton in the 'Fossil Flora of Great Britain/ a work in three volumes. As 
in elementary botany, so in horticulture, he commenced with a small work, en- 
titled ' Outlines of Horticulture.' This was followed by the ' Theory of Horti- 
cuhure,' first pubhehed in 1840,which,after having been reproduced in America, 
and thmslated into nearly every European language, readied a second edition in 
England in 1855. Dr. Lindley was very proud of this work, and regarded it as 
