1899] MICROSCOPICAL JOURNAL. 229 



end of the last century. It was the earliest example of a 

 microscope with a rackwork limb in the society's collec- 

 tion. Dr. Hebb exhibited, on behalf of Miss Latham, two 

 slides of blood which had been stained with methylene blue: 

 one was of normal blood, which had retained the blue stain; 

 the other was of blood from a diabetic person ; but in this 

 the blue had been discharg-ed, probably by the action of 

 the glucose which is present in the blood in this disease. 

 The President regretted to have to inform the meeting 

 that Prof, Lionel Beale had been taken ill, and was unable 

 to be present to read his paper. Dr. Hebb read a letter 

 from Mr. Bryce Scott, who said if any Fellows cared for 

 West India dredgings, rich in Foraminifera, he would be 

 pleased to forward them some. The President then, on 

 behalf of the society, presented to Mr. T. H. Powell, an 

 enlarged framed copy of the portrait of the late Mr. Hugh 

 Powell. The President made a few remarks upon the 

 theory and construction of eyepieces for the microscope. 

 He then proceeded to explain the subject by means of dia- 

 grams upon the blackboard, and having replied to various 

 questions, he said that at the next meeting it was hoped 

 Dr. H. C. Sorby would read a paper on the "Preparation 

 of Microscopical Specimens of Marine Worms," and that 

 there would be an exhibition of pond life. 



Quekett Microscopical Club. — The 369th meeting May 

 19, Dr. John Tatham, president announced that Dr. M. C. 

 Cooke had, at the express desire of the committee, most 

 kindly written a short history of the founding of the club. 



Mr. C. L. Curties exhibited Reichert's electric warm 

 stage, which permitted a constant temperature to be main- 

 tained for any length of time within 0.1 degree Centigrade, 

 Messrs. Watson exhibited West's dissecting- stage, for 

 placing over the ordinary stage when the microscope was 

 being used for the dissection or examination of objects in 

 fluids. F. Enock, gave a lecture on the life-history of the 

 Tiger-beetle, illustrated by a number of beautifully-exe- 

 cuted slides, shown by the oxy-hydrogen lantern. It was 

 a model of thorough, patient, scientific work, and the pic- 

 tures were charming. 



