O4 Seward: The Jurassic Flora of Yorkshire. 
The Bornholm flora is considered by Méller, who has mono- 
graphed the plants, to be Liassic or Rhaetic ; the Spitsbergen 
and Franz Josef Land plants are from Upper Jurassic beds. 
But, as already stated, there are comparatively few. striking 
differences observable in the floras obtained from strata 
ranging from the Rhaetic to the Lower Cretaceous. 
Making due allowance for local differences exhibited by 
the different floras, and for the fact that at the present day, 
despite the well-marked botanical provinces characteristic 
of different latitudes, there are some species which are almost 
cosmopolitan in their range, it is impossible seriously to doubt 
that the vegetation of the Jurassic period was more uniform 
in general facies than is the case with widely separated floras 
at the present day. I hope in the near future to analyse more 
fully the data on which some conclusions may be arrived at in 
regard to the geographical distribution of Rhaetic and Jurassic 
floras. My object now is, primarily, to show that beyond the 
determination of material collected from a particular locality, 
there are other questions of wider interest which are worthy 
of more attention than they have hitherto received. In en- 
deavouring to interpret our local records of the rocks, we shall 
do our work more thoroughly and exercise more self-control 
when we are tempted to jump to conclusions without substan- 
tial reasons, if we remember that lists we compile may be utilised 
by students as data on which to base deductions of far-reaching 
importance. 
Since my election as President of the Yorkshire Naturalists’ 
Union I have frequently felt myself in a false position ; every 
time I have seen my name printed in a prominent place in 
the notices sent to me from time to time, my conscience has 
reminded me that I serve no useful purpose. If, however, 
I have succeeded by means of this hasty sketch of the Jurassic 
flora in stimulating further research into the ancient herbaria 
of East Yorkshire, I shall feel that I have in some degree 
justified my Presidential existence. 
—_—_ <> & 
Tine Report of the Worcester Museum shews that the museum lectures 
to scholars are still popular. The collection of British Coleoptera has now 
been arranged, and consists of 11,460 specimens (1772 species). Mr. A. 
Strickland has presented a collection of geological specimens formed by 
the late Hugh E. Strickland. 
The Report of the Sheffizld Public Museums is a modest pamphlet of 
12 pp., but includes particulars of some important acquisitions, notably 
the collections of medals, china and natural history specimens bequeathed 
by the late Dr. H. C. Sorby. Mr. E. Howarth, the Curator, also favours 
us with copies of his papers on ‘ Meteorology,’ and ‘Museums and Art 
Gallery,’ reprinted from the British Association Shefheld Handbook. 
Naturalist, 
