63 
which some years ago bore only a scanty crop of coarse grass and 
abundant Cyperacez, have been banked and drained, and now pro- 
duce remunerating crops of corn. On the borders of such places the 
ergot was plentiful, especially on the Lolium perenne and L. arvense ; 
I believe it is now found only in very wet seasons. As an example 
of the effect of this draining, I may state I have for the last three years 
been vainly endeavouring to meet with specimens of the Vibrio Tritici, 
which a few years ago might be gathered in every field.” 
The above was written in July. In a recent letter to Mr. Blyth, 
Mr. Cobb states that the ergot had become very prevalent, and might 
be met with almost everywhere. 
Alteration in the Days of Meeting. 
The President then announced that in future the meetings of the 
Club, in accordance with the wishes of the great majority of its mem- 
bers, would take place on the second Wednesdays in the months in 
which they were appointed to take place, instead of the first Mondays 
as heretofore. The next meeting would therefore be held on Wednes- 
day evening, January 11th, 1854. 
On the Germination of the Spores of the Uredinee. 
By M. L. B. TuLasne.* 
THE author had previously shown that the spores of the Uredinee, 
like the pollen-grains of phanerogamous plants, had a variable number 
of pores, from which afterwards tubular filaments arose, apparently 
analogous to those which are the first result of the germination of the 
spore of a fungus. 
In addition, he has proved that the so-called Acidiolum eanthe. 
matum, Unger, may, very probably, be correctly regarded as equiva- 
lent to the spermogonia of the other fungi, so that in all probability 
it is not a sexual. According to new researches the germinal fila- 
ments of the spores do not all retain the simple, continuous condition, 
which was formerly assigned to them, and probably do not represent 
the commencement of the true mycelium. 
When sown, the spores of A\cidium Euphorbie sylvestris, D.C., 
* From the ‘Comptes Rendus’ for June, 1853, and published in the ‘ Quarterly 
Journal of Microscopical Science’ for January, 1854. 
