NOTES AND MEMORANDA, 179 
felt a keen solicitude, and the foundation of a Faculty of 
Natural Science in that University was essentially his work. 
In 1843 the Order of the Crown of Wurtemberg was con- 
ferred on him and he was ennobled. About this time he was 
obliged to make a prolonged stay in South Tyrol on account 
of delicate health. He recovered; but although a man of 
great stature and robust build, he appears, after he had ac- 
complished his sixtieth year, to have fallen into chronic ill 
health. He suffered from pleurisy and attacks of diarrhea. 
Eventually he became very reserved in manner and subject 
to giddiness. On the morning of Easter Monday, April 1, 
1872, having been cheerful and well the night before, he was 
found dead in bed. 
These particulars are derived from the memoir which ap- 
peared in the ‘ Botanische Zeitung’ for 1872. Von Mohl was 
elected a Foreign Member of the Royal Society, March 26th, 
1868. 
In describing fully Von Mohl’s scientific career and position, 
it would be necessary to write the history of vegetable his- 
tology. His work is practically coincident with the appli- 
cation of the higher powers of the microscope to the investi- 
gation of vegetable tissue. Confining himself almost exclu- 
sively to the higher classes of plants, from the group of 
Muscinezwe upwards (and neglecting the Alge, Fungi, and 
Lichens), there is hardly a point of any consequence in which 
some research or investigation of Von Mohl’s is not the solid 
foundation of our present knowledge. ‘The catalogue of 
Scientific Papers of the Royal Society enumerates 78 of his 
papers—not including various dissertations, some of which, 
along with a selection of the more important of his papers, 
were in 1845 collected and published in a quarto volume, 
under the title of “‘ Vermischte Schriften.” The list of his 
publications which accompanies the memoir in the ‘ Bot- 
anische Zeitung’ gives the titles of no less than 90. Nor 
were his own labours the only way in which he contributed 
to the advancement of our knowledge of the minute anatomy 
of plants. In 1843 he commenced, in conjunction with 
Schlechtendal, the ‘ Botanische Zeitung,’ a small quarto 
weekly periodical of eight pages, occasionally illustrated with 
plates, which he continued to edit till the time of his death. 
The volumes of this journal chronicle, year by year, the gradual 
development of the microscopic study of plants, a field in 
which (doubtless in no small degree owing to the example 
of Von Mohl) German science has reaped a more abundant 
harvest than that of other nations. No one can fail to be 
struck with the thorough character of Von Mohl’s scientific 
