VI. CIRCULATION AND RESPIRATION. 949 



3779. Five hundred yards of Paper for continuous traces. 



T. Hawkslcy. 



3780. Dr. Burdon Sanderson's Cardiograph for record- 

 ing the movements of the heart. T. Hawksley. 



3781. Dr. Burdon Sanderson's Stetho-Cardiograph for 



recording the movements of the chest and the heart. 



T. Ilawksley. 



3782. Marey's Sphygmograph, with improvements by 

 Drs. Sanderson, Sibson, and Handfield Jones, for recording the 

 motion of the pulse. T. Hawksley. 



3783. Dr. P. Sibson's Cardiograph for right and left ven- 

 tricles and apex of heart, T. Hawksley. 



3784. Marey's adjusting Pneumatic Tambour. 



T. Hawksley. 



3785. Electro Marker. T. Hawksley. 



3786. Electro Magnetic Marker. T. Hawkslcy 



3787. Volt's Apparatus for investigating the gases given off 

 in the respiration of small animals, exhibited in the Physiological 

 Institute of Munich. C. Stollnreuther, Munich. 



3788. Box containing Apparatus for the direct Transfusion 

 of the Blood : 



1. Regulating canal formed by two tubes. 



2. Three canals terminating in olive wood, shaped like a 



clarionet reed to insert in the arteries of animals. 



3. Hollow and lancet. 



4. Three canals of steel, reed-shaped, to fix in the regulating 



canal. 



5. Two pincers for compression. 



6. India-rubber tube for joining the regulating canals to the 



arterial canal. 



More detailed explanations as to the mode of setting up the 

 apparatus, and the different positions of the internal tube as to 

 the regulating canal, will be found in the description of the 

 apparatus, two copies of which, with sketches and plans, are 

 appended. 



Dr. Giuseppe A/bi?ii, Professor of Physiology in the Royal 

 University of Naples. 



4557. Drawings of Scientific Instruments in the Univer 

 sity of Turin. Director, Dr. Angela Mossi. 



1. Physiological apparatus, for measuring the movements of the blood- 

 vessels : 



A. Pletismograph, and apparatus for producing artificial circulation in 



organs separated from the body. 



B. Pletismograph, to note the movements of the blood-vessels in man. 



(See two printed descriptions attached.) 



