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believed to have failed ; but this is not so, since the subcutaneous con- 
nective tissue with the remains of the sweat-glands remain adherent. After 
the lapse of some time new-formed epidermis appears where the trans- 
plantation was made, which may perhaps be due to the germination of the 
remains of the sweat-glands. Thiersch finally recommends a modification 
of Reverdin’s plan, namely, that the surface of the wound to which the 
skin is about to be transplanted should have any granulations that may be 
found upon it shaved off, and the new skin applied in the course of a few 
hours. 
The Glands in the Placenta. — Professor Turner, who has been lecturing 
on the Placenta at the College of Surgeons on June 14, 15, and 16, described 
very fully the glands, which are tubular, more or less oblique in direction, 
and more or less branched. In the mare, pig, dog, and hedgehog they are 
closely arranged, whilst in the sloth, macacus, and chimpanzee they are 
very sparsely scattered. The glands are lined with a continuation of the 
epithelium covering the general surface of the mucous membrane. Leydig 
first demonstrated that they were columnar and ciliate in the pig, but this 
has since been shown to be the case in the cow, sheep, mouse, and bat. In 
regard to the course of the glands, Sharpey, from observations made on the 
bitch, thought there were shorter unbranched and longer branched ones, 
and this was supported by Bischoff, who concluded that the shorter ones 
secreted mucus, and the larger ones a special fluid. Professor Turner’s own 
observations, made with higher microscopic powers than were used either 
by Sharpey or by Bischoff, is of opinion that there is no difference between 
them, the shorter ones being artificially produced by the section, in con- 
sequence of the longer ones not running straight, but at an angle. The 
drawing of the glands usually contained in text-books, taken from "Weber, 
is conventional, and Professor Turner generallyagrees with the account given 
by Dr. J. Williams in a recent paper. 
The Duality of the Brain. — At a recent meeting of the Psychological 
Society (June 9) Mr. Serjeant Cox read a paper on the u The Duality of the 
Mind.” He said that the fact of the duplicity of the brain, first asserted by 
Galt, and afterwards by Dr. A. Wigan and Sir Henry Holland, was now 
confirmed by Brown- Sequard, all of whom deduced from this brain-struc- 
ture that the mental faculties are duplex — that we have, in fact, two 
minds. This explained a multitude of mental phenomena otherwise in- 
explicable, especially Dr. Carpenter’s u Unconscious Cerebration ; ” and, if 
true was of incalculable importance to psychology. Many instances were 
narrated of total destruction of one hemisphere of the brain attended by 
only partial loss of mental power. An animated discussion followed, by 
Sir J. H. Maxwell, Rev. W. Moses, Major Owen, Mr. G. Harris, Mr. Coffin, 
and others, but not so much was said about this important matter as Brown- 
Sequard has recently stated. 
Pistol-shot Wound ; Ball passing beneath Brain. — The u New York 
Medical Journal” for May states that recently, at the Bellevue Hospital, an 
interesting case occurred of the above description. The patient, an Italian, 
is supposed to have attempted to commit suicide. The ball entered the 
side of the head, posterior to the orbit, and the only symptoms of injury 
were complete blindness of the left eye, with partial blindness of right. 
