f 
248 BOTANICAL GAZETTE. [ September, 
ROFESSOR Jos. F. JAMES, lately of Miami University, will become 
aie of botany at the State Agricultural sollege of Maryland < the 
ning of the college year in September. The institution is loc 
near ch eke on,so that scientific Sotipaniionakie! is not lacking fit 
the teachers ther 
many of the Gaaior ove peri Toctioale not especially botanical, have 
given longer or shorter notices of a sag and works, Our attention is 
called to such a sketch, written agn stir in Siew Naturwissen- 
schaftliche Rundschau, published at Senarseiresig. Germany. 
THE MEETING of the oem wt’ of the mane e Academy 
of iam Sciences held o ebru 13 was devoted to memorials of 
r y vari oneal ncn ‘ati of a different phase of his 
cook Addresses were made ¢ M. Canby, Prof. J throck, 
Dr. . Wilson, and Mr. Thomas Meehan. A suitable series of resolu- 
tions offered by Mr. J. H. Redfield was then passed and ordered on record. 
IN THE LAsT FASCICLE of the Annales des Science Naturelles (botanique 
ye vii, ror 2, 3,4) MM. Bornet vil Flahault continue their revision 
e Nostocacez of French herbaria. The present part includes the 
an genera of the Nostoces, of which two, a new one, Wollea? and 
Hormothamnion, are not fou nd in Europe. From the enormous syn- 
pode my of some species, we tive that the revision has come none too 
SEction F, at > Cleveland meeting A. A. A. S., was big poor! 
nate in its secreta: ryship. The secretary, Dr. N. L. Britto , was absen 
Kew, England. s B. E. Fernow, chief of the forestry division, "De- 
partment of Agriculture, was elected secretary pro - but on Monday 
morning he received word of the death of his ies father, and was 
obliged to leave. The conclusion of the anne devolved upon Mr. C RB. 
Barnes, who was elected at the m morning sessio 
Dr Vriks has lately ae the young pee roots of plants *ith 
reference to the mechanics of the tissues. He wei tes = pier 
a pressure of 35cm. of mercury. Every fifteen minutes a i placed une 
hin tangential section was from the root at a pl ¢ m t 
tip. No water appeared at the surface of the cut until the sheath was 
reached, when immediately op wa d. Similar exper! 
with like results were made upon the of Dipsacus sylvestris and the 
stems of arions plants. He also shows how the sheaih is ada 
sist the filtration of the r under root-pressure before it becomes sub- 
Vri 
cells which take up or transport water is such as to facilitate its Sa 
vascular system in the interior. In the root-hairs the rotation d 
i sheath an 
d trans’ 
- The movement is strongest i bsorption o! 
: gest in the cells in which ae 
sono 18 greatest. As the suberization of the walls proceed s it gradual, 
Feases, and ceases when the process is complete? 
Spharosygn ance —— well known algologist, Rev. Francis Wolle, and ineluding bis 
3See abstract in Bot. Centralblatt, Band xxxv. 76 (1888). 
he 
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