1191DERMATOLOGICAL SOCIETY OF GREAT BRITAIN AND IRELAND.

careful investigation should be made for any change what-ever in the osseous system in every case of pituitary tumour.He had examined the bone in cases of osteitis deformans,and there could be no doubt that the changes were inflam-matory. A good account of the minute changes in the bonein cases of acromegaly was much needed.Mr. C. G. SELIGMANN showed the living ova of Bilharzia

Hxmatobium from the urine of a soldier who had recentlyreturned from Mashonaland. The ova were constantly passedfrom both the bladder and the rectum. Those from thebladder had terminal spines only, while those from therectum had also lateral spines. The ova could be hatchedin warm urine, although not so quickly as in water at thesame temperature. In some cases the anterior end of theovum began to move vigorously, and a number of granuleswere discharged, many of them collecting between the ovumand the shell. After a time the embryo would become slowlyextruded. In other cases the embryo, after more or lessactive movements within the shell, escapes svddenly througha lateral rent. After escape the cilia at the oral end cometo move more vigorously than those elsewhere. The shapeof the embryo is constantly changing in an amœba-likemanner.

Dr. UALVERT and Mr. T. STRANGEWAYS PIGG showed aspecimen of Calcification of the Pericardium the result ofchronic pyo-pericardium. The condition appeared to haveexisted for five year.’!. Three weeks before death the patientwas attacked with pleuri-y with effusion and died from cardiacfailare. The heart was found to be almost entirely cased incalcareous material and there were several ounces of inspis-sated pus in the pericardium. Such cases were very rara,but had been described by Murchison, Pearce Gould, Liennec,and others.-Dr. A. F. VOELCKER said that there wasa similar condition figured by Matthew Baillie in his"Atlas," published in 1803, as one of "ossification of theheart."-The PRESIDENT said that this specimen confirmedhis impression that calcification of the pericardium wasalmost always due to previous suppuration.

Mr. SPENCER showed microscopic specimens of a Sub-maxillary Salivary Gland altered by general inflammation,the smaller ducts of which were distended by small calculiformed of inspissated mucus in which carbonates were beingdeposited. The gland had been excised from a girl agedtwenty years who had had recurrent distention of Wbarton’sduct and inflammation of the gland. On opening the ductropy mucus and numerous small calculi of the size and shapeof rice grains escaped. Similar calculi continued to be dis- charged or were scraped away until finally the gland had tobe excised to avoid suppuration. Mr. Spencer mentioned thecase of a young man under the care of Dr. Dundas Grant,from whose duct calculi were being discharged of the famesf.zeandshape. In the ordinary wdy a single almond-shapedcalculus forms in and fills the main duct. Here numerouscalculi arose in the substance of the gland comparable to theformation of calculi in the liver or kidney.

illr. SPENCER also showed microscopic specimens ofChronic Traumatic Neuritis taken from an amputatedleg. The patient, a woman, aged forty-three years, hadsprained her ankle severely four and a half years before.She had been under the care of Dr. Ferris, Mr. Davidson,and Mr. Francis, of Uxbridge, and had been several timesin hospital under the care of Mr. Spencer. After theaccident she could never put her foot to the ground,although all the bruising and swelling cleared up andthere had been no fracture or dislocation. She alwayscomplained of great hyperæsthesia, of pain especially atnight, and suffered intermittently from cedema. After fouryears ulceration and necrosis of the tees commenced, and thepain spread up to the External popliteal nerve as it turnedroui3d the fibula. After the accident the patient developedmany general symptoms of a nervous character, and this takenin connexion with the approaching climacteric tended tompport a diagnosis of hysteria until this was negatived bythe commencing ulceration and necrosis of the toes. Patho-logically the case was an interesting one of chronic spreadingtraumatic neuritis set up by a subcutaneous injury to the sof6parts without the intervention of any of the other recognisedcauses of peripheral neuritis.-Dr. F. E. BATTEN asked ifany other stains than the ordinary hæmatoxylin had beenemployed, and whether during life there had been anyreaction of degeneration in the affected limb -Mr. SPENCER,in reply, said that several stains had been used and showedthe same changes. The electrical reactions had not beentested, partly owing to the extreme hyperæ,thesia.

DERMATOLOGICAL SOCIETY OF GREATBRITAIN AND IRELAND.

Exhibition of Cases.AN ordinary meeting of this society was held at 20,

Hanover-square on Oct. 27th, Mr. BUXTON SBILLITOE ’beingin the chair.

Mr. W. T. FREEMAN showed a patient, a middle-agedsingle woman, who had two patches upon her forehead ;the edges were slightly raised and were encroaching veryslowly indeed upon the surrounding skin. The centreof each patch was occupied by a quite superficial atrophicscar. Neither patch had ever wept, and there was

practically no irritability. One patch had existed for sixteenyears and the other for twelve years. Mr. Freeman askedfor a diagnosis, and the opinions given were various.-Anearly form of rodent ulcer was suggested by Mr. PERNET -Aspecific origin was also suggested, or that the patches weresimple lichenous patches.

Dr. ABRAHAM showed in a man about forty-five years ofage an interest1lJg example of Xanthoma Diabeticorum. Theindividual lesions were of about the size of hemp seeds.-Dr.ABRAHAM also brought forward in a man above middle agea case of Granuloma Facgoides. There were well-markednew growths over the lower abdomen and close by the leftnipple. The case was originally believed to be one ofseborrhœie eczema.-Dr. STOWERS agreed as to the diagnosisand remarked that they seldom had the opportunity of seeingthe 6disease in such an early stage.-Mr. PERNET remarkedon the longevity of the ancestors of such patients and gaveexamples.

Dr. SAViLL showed a case of Urticaria Factitia and alsoone of Drug Eruption. The urticarial wheals, both thosethat were persistent and those that could be mechanicallyproduced at the time, were very exaggerated. The drugeruption was marked and not limited to the acne regions.Mr. SHILLITOE showed a case of Acute General Dermatitis

caused by a mercurial ointment.Mr. HOPE GRANT showed a case of Tumour of the Hand.

It commenced a few months previously as a boil; the tumourhad steadily increased in size and a scab had formed. It wasevidently a tuberculous growth, probably of the nature of apost-mortem wart. The patient was a clothworker.

Dr. ABRAHAM showed for Mr. WAREN TAY a case ofLichen Ruber Acuminatus.-Mr. PERNET called it lichenplanus.

Dr. SroSVERS brought forward a woman, aged twenty-fouryears, for diagnosis. He believed it to be a case of AcneVarioloformis.-This was generally agreed to.

Dr. EDDOWES showed a case of Seborrhaea. Corporis in aman aged forty-five years. He remarked on the fact of itshaving commenced on the scalp and then having spreaddownwards.-Dr. EDDOWES also showed a case of LichenPlanus Hypertrophicus on the legs in an old man.-Dr.EDDOW&s also demonstrated by paper, photographs, andmicroscope a case of Tinea Circinata contracted from a pethedgehog.

ODONTOLOGICAL SOCIETY OF GREATBRITAIN.

Exhibition of Specimen.-" Home. made Artificial Denture.-Extraction of a Tooth by Means of an Elastic Ban6,7 -A Mandible showing an Encbedded Premolar - AcuteSuppuration of the Mandible.-Presidential AddressTHE opening meeting of the session of this society was

held on Nov. 1st at 40, Leicester-square, Mr. W. E. HABDIKG,President, being in the chair.Mr. H. L. ALBERT exhibited two Deciduous Central

Incisors which had been removed from the mouth of a childtwelve months of age. The teeth presented an extreme

development of the civgulum on the palatal side, and as thisled to irritation of the tongue the teeth were removed.

Mr. STORER BENNETT showed for Mr. CHARTERS WHITEa specimen of " Home Made Artificial Teeth. The twocentral mandibular incisors had been lost and the patienthad carved up somewhat primitively two pieces of bone andhad fixed them in position by wire ligatures around the

adjacent lateral incisors. The specimen shown included thetwo artificial teeth with the two natural teeth.