318 
of Barberton in the Transvaal, and read the following extract 
of the latter from a recent work, “Incuadi Yami,” by Dr 
Matthews :— 
Resumé of the opinion of Dr Schenk, Geologist :—The Barberton 
formation consisting of very old and in most instances highly metamorphosed 
rocks, composed of slate and sandstone, with interposed eruptive rocks of 
greenstone (diorite, serpentine, &c.) These rocks are highly erected, 
dipping invariably at great angles, often perpendicular, and run from east 
to west. 
In this formation the gold-bearing veins or reefs are situated, and 
these, with few exceptions, run in the same direction (this is for instance, 
the case with the reefs at Moodies, and with the Sheba, etc.) nearly always 
accompanying the eruptive rocks. The gold came from the interior of the 
earth with the eruptive rocks to the surface, and was therefore concentrated 
in these reefs, which consist of quartz, and often contain iron along with the 
gold. This formation probably corresponds in age with the Silurian forma- 
tion of Europe, and is found also in Swaziland, Zoutspansberg, and the 
recently discovered goldfields of the Tugela. There is no younger formation 
overlying these rocks at Barberton, but in Drakensberg and at Witwaterstand 
a Younger formation lies unconformably over the older rocks—probably of 
Devonian age. 
The second Winter Meeting was held at the Science School 
at Gloucester on January 22nd, 1889, to hear a paper by Dr 
Day, C.I.E., F.L.S8., entitled— 
“NOTES ON HYBRIDIZATION.” 
The President, on taking the chair, said he and all present 
were very sorry that a serious illness was the reason of the 
absence of the author; and that Dr Day had entrusted the 
reading of the paper to his friend, the Rev. E. Cornford. 
As this very important communication will appear in the 
Transactions, I shall make no abstract, and refer the members 
to an attentive perusal of the paper, which adds much to our 
knowledge of a very important subject which has only of late 
years received the attention it merits. 
The President proposed that an expression of the deep 
regret of the members at the cause of Dr Day’s absence should 
be conveyed to him by Mr Cornford. Professor Harker, in 
seconding the resolution remarked he would not do more 
