ON CHEIROSTROBUS, SPENCERITES, ETC. 145 
It would, sa think, have been well if the actual date of publi- 
cation had been given. The title-page bears date 1899, and the 
preface is rieere an of that year. Experience shows that an 
indication of this kind often pr = for the following January, and 
although the new species described in the work are not numerous, 
it behoves every systematist to do his utmost to avoid adding to the 
confusion which — exists owing to want of care in such details. 
We hope Mr. Bailey will lose no time in pushing towards a 
conclusion this daotul contribution to the aca of the botany 
of our colonies 
We take the present opportunity of giving a portrait of Thomas 
Kirk, which did not arrive in time to accompany our notice of him 
in this Journal for December, 1898. 
Dr. D. H. Scorr’s Recent Memoirs. 
On Cheirostrobus, a New Type of Fossil Cone from the Lower Carboni- 
Jerous Strata. Phil. Trans. clxxxix. pp. 1-34, pl. 1-6. 1897. 
On Spencerites, a New Genus of eure Ovni From the ae 
Measures, founded on the Lepidodendron Spenceri. Phil. Tran 
elxxxix. pp. 83-106, pl. 12-15. 1897. 
On aa ornare anglica a, a New Representative o ne Cycado/filices, 
Phil. Trans. exci. pp. 88-126, pl. 5-13. 
WE ins Dr. Scott on the nein ae which he 
describes and expounds in these three paper jhe as colla- 
borator with the late Prof. Williamson in the las Aeapetes he 
contributed to the Philosophical Transactions, he has now taken up 
the work by himself, and the first fruits of his independent labours 
we have in these three m memoirs. 
he first deals with a novelty from one of those strange masses 
of vegetable matter enclosed in the trappean tufa at Pettycur, 
€ 
sporophylls are cha ae in superposed whorls. The sporophylls 
into three og The lower gees is foliaceous, passes out at 
a right angle to the axis, and the ascending apices cover the tips 
of the upper lamina, which bear on gees of its three divisions the 
sporangia. The spores are uniform in size. Be Scott carefully 
anne ses the affinities of this remarkable cone. In most respects 
e 
Bieri Ns SO as ‘to enable a catisheatiry souiuatiantt ts be made. 
The 
tae by Williamson, but possessing characters which Dr. 
Scott considers indicate a new generic type, to which he gives the 
