PROCEEDINGS OF SOCIETIES. 187 
Dhoon, and Kangra are progressing in a scatters manner, parti- 
ess. most ingenious machine, patented by Mr. J. Greig, of 
Edinburgh, is now here, and about to be tested ; Colonel Hyer, mint- 
simple is dangerous in working. By it a poor young Mohammedan 
lad had both his hands adnate rendering amputation above the 
wrists necessa 
April 10¢h.— Rite McNab, Esq., President, in = 
The following communications were read :—‘ Not syle * 
F. M. Caird. The author had found deep: ied illustra- 
tions of Tylosis in various species of Castanea, Carya, Juglans, 
Quercus mus, &e. In Juglans cinerea the cells are in many 
instances distinetly dotted. Udmus fulva and U. campestris, Quercus 
alba (a Canadian species s), Q. Robur, and Q. rubra furnish fine 
examples. In woods aving a close structure, as Betula, Fagus, ae 
Dichogamy, and Allied Subjects.’ Communicated by Dr. R. Brown.— 
“On the Ferns in the Valley of the erin ” By Dr. T. W. Mawson ; 
communicated by Mr. Sadler.—‘‘ Report on the Open-air Vegetation 
at the Royal Botanic ie (No. 3, 1873).” By Mr. McNab.—Mr. 
ibited a seri 
which he had got Soot the ash-beds near Petticur, Burntisland. 
pid consisted of portions of Stigmaria, Lepidodendron, Dietyoxylon 
Grievit, &c., and well showed the structure of most of them. The 
most interesting was a mass in which two specimens of Lepidostrobus 
were imbedded, both showing macrospores in the lower part and 
ish, the 
sporangia, &c., and the stem on which they are Peco ine darkish- 
brown, all enclosed i in a reddish-brown matrix. The eee between 
the two spores is so marked both by colour and form that i 
seen at a glance, whilst both spores may be distinctly seen id the 
microscope in the prepared specimens. Although cones bearing both 
Spores have been described by Brongniart and others, they are so rare 
