1884.] Scientific News. 559 
and analine red dissolve directly in the fluid, while eosine and 
purpurine are first dissolved in three parts alcohol. 
Picro-carmine or borax-carmine mixed with the fluid, give ex- 
cellent staining. The addition of staining fluids causes a precipi- 
tate, so that before using the fluid should be filtered. 
:0:——— 
SCIENTIFIC NEWS. 
— In the death of Professor Arnold Guyot, who was born near 
Neufchatel, in 1807, we have lost our most eminent geographer, 
and a geologist whose reputation was worldwide. He began his 
life’s work as a student of Ritter, the influence of whose instrué- 
tion is seen in the “Earth and Man.” While a professor in the 
(186, was his “ Physical structure of the Appalachian mountains” 
1). He wrote a series of text-books on physical geography, 
wee finished ; as a man, singularly pure, simple-hearted, un- 
him and sincere. It was a benediction to come in contact with 
~ Dr. Geor Ei ] k b 2$ 
Frankfo ge Engelmann, who died February 4, was born 
United Seer the-Main, February 2, 1809. Removing to the 
S His botanical studies which made him famous, were 
Carried on i , i 
poan i ng in the reports of the Pacific Railroad and the Texas 
ion, utvey. He monographed the pines, and the North 
and Pena Stoup of Cuscuta, Juncus, Euphorbia, Quercus, Vitis 
gave. He ranked as a botanist only second to Dr. Gray. 
y of Science. He also was the oldest American 
his observations extending overa period of forty 
| : the | The Loblogischer Fahresbericht for 1882, so far as relates to 
Site pig a ates, Jit is of the same 
Size, with the eee made. its appearance. It is 
editors, as in former years, and is equally in- 
