vi EDITOR'S PREFACE. 



ture; of Paquelin and Joly on its coloring matters; of Mathieu and 

 D'Urbain, and of Estor and St. Pierre on its gases; of Richardson and 

 Briicke on the structure of the red corpuscles; of Malassez on their num- 

 ber; and of Foster and Balfour on the mode of their development; of 

 Klein on the structure and movements of the white corpuscles; of Binz 

 and Geltowsky on the action of reagents on them ; and of Hoppe-Seyler 

 on their composition; of Obermeier, Lewis, Nepveu, Lostorfer, and 

 others, on spores, germs, and entozoa in the blood, have been given 

 under their appropriate headings. 



So in the Section on the Liver, the results of Prof. Flower's researches 

 on its form and divisions, with those of Steffan on its relative weight; 

 of Weber, Asp, Hering, Heidenhain, Flint, Schiff, and Schenk on its 

 structure; of Kowalewsky on the pressure under which the Bile is ex- 

 creted; of Bogoljubow on the gases of the Bile; of Dalton on its Spec- 

 trum; of Maly, Jaffe, Vanlair and Masius, Bernard, and Tlmdichum, 

 on its coloring matters; of Bruntou, on the Action of Calomel on the 

 Liver; of Pfluger, Rohrig, and Munk on the Action of the Nerves on 

 its Secretory Activity; and of Bernard, v. Wittich, Luchsinger, Dock, 

 Salomon, Cyon and Aladoff, Eckhard, Weiss, Scheremetjewsky, and 

 Senator, on its Glycogenic Function, have all been noticed at greater or 

 less length. 



And again, in the Section on the Kidney and its secretion, the obser- 

 vations of Spiegelberg, Gscheidlen, and others, on uremia; of Pollack, 

 on the quantity and character of the urine in infants; of Ustimowitsch, 

 on the conditions of its secretion in adults; of Schiff and Brown-Sequard, 

 on the influence of the nervous system upon its composition; of Flint, 

 on the effects of violent exercise; and of Heynsius, Greliant, and others, 

 on various circumstances modifying the amount of urea, have received 

 due notice. 



It would be tedious to go through the other subjects in the same way, 

 but it may be stated that, in the account of the Nervous System, due 

 space has been given to the consideration of the interesting researches of 

 Fritsch and Hitzig, and of Dr. Ferricr in regard to the action of Elec- 

 tricity applied directly to the surface of the Cerebral Convolutions. In 

 writing the Section on this subject, the Editor has not only had the ad- 

 vantage of Dr. Ferrier's assistance, but has also had several opportuni- 



