18 
SILVA OF NORTH AMERICA. 
LILIACEA, 
The wood of Yucca Schottii has not been examined. 
Yucca Schottii was discovered by Mr. A. Schott’ in June, 1849, in the valley of the Santa Cruz 
River in northern Sonora. 
1 Arthur Carl Victor Schott (February 27, 1814-July 26, 1875) 
was born in Stuttgart, and educated in the gymnasium and the 
technical school of his native city. After graduating at the age 
of fifteen he worked as an apprentice for a year in the Royal 
Gardens of Stuttgart preparatory to entering the Institute of 
Agriculture at Hohenheim. When he had thus completed his 
education Schott managed various rural estates in Germany, and 
then took charge of a mining property in Hungary, where he 
remained for ten years, devoting himself assiduously to the study 
of botany, geology, and zodlogy. In 1848 he traveled through 
southern Europe, Turkey, and Arabia, and in August, 1850, came 
to America, where he obtained employment in the office of the 
United States Topographical Engineers at Washington. A few 
years later, upon the recommendation of Dr. John Torrey, he was 
appointed a member of the scientific corps of the commission estab- 
lished to fix the boundary between the United States and Mexico, 
In addition 
to his regular work as one of the surveyors of the Commission, 
Mr. Schott formed large botanical collections, made the sketches 
of the scenery which accompanied the reports of Lieutenant Mich- 
and was given charge of one of the surveying parties. 
ler, published in the general Boundary Report and in separate 
memoirs, and also sketched the geology of the lower Rio Grande, 
and wrote the account of the geology of the territory lying between 
the one hundred and eleventh degree of longitude and the initial 
point on the Colorado River of the West. In 1857, his work in 
connection with the Mexican Boundary Commission being com- 
pleted, he became a member of a Government Commission to sur- 
vey the Atrato River in the United States of Colombia, serving 
there for several months, and returning with the Commission to 
Washington, where its report was completed in 1864. 
In 1864 Mr. Schott was commissioned by Governor Salazar of 
Yucatan to make a geological survey of that State, and was en- 
gaged on this work until 1866, when it was interrupted by political 
revolutions. He was afterwards employed in the Topographical 
Bureau of the War Department of the United States, and then, 
until his death, in the office of the Coast Survey. 
Mr. Schott is described as a man of many talents, a good lin- 
guist, an accomplished scholar and artist, and a thorough naturalist. 
He was an indefatigable worker, careful and systematic in his 
methods, and untiring in his efforts to advance the cause of science. 
EXPLANATION OF THE PLATE. 
Prats DI. Yucca Scuorrnu. 
bo oe 
CAH AP w 
. A fruit, natural size. 
A seed, natural size. 
. Portion of a flowering panicle, natural size. 
Vertical section of a flower, natural size. 
. The base of a leaf, natural size. 
. The point of a leaf, natural size. 
A bract from the base of an inflorescence, natural size. 
. A seedling, natural size. 
