1002 SEC. 18. BIOLOGY. 



(c.) Universal handle for four porcelain cauterizers. Intestine 

 cauterizer. Tooth cauterizer. 



(d.) Tonsil cutter, for cauterizing the almond glands. 



Kgl. chirurgische Klinik der Univ. Breslau (Prof. Dr. 

 Fischer). 



3949b. Case, with two cautery handles, and six small 

 cauteries for dentists. 



Kgl. chirurgische Klinik (Prof. Dr. Fischer), Breslau. 



3949c. Case, with larynx instruments. 



Kgl. chirurgische Klinik (Prof. Dr. Fischer), Breslau. 



3949 d. Complete Case. 



Kgl. chirurgische Klinik (Prof. Dr. Fischer), Breslau. 



3949e. Case, containing the most necessary cauteries for 

 practical surgeons. 



Kgl. chirurgische Klinik (Prof. Dr. Fischer), Breslau. 



3949f. Winterich's Lamp. Friedrich Heller, Nuremberg. 

 The instrument is very convenient for illuminating the throat. 



3950. Hatching Apparatus at a uniform temperature; 

 length 57 c., width 23, height 70 centims. 



The apparatus was made in 1850, but not described. In the interior of 

 the hatching apparatus is placed a metallic thermometer, the vertical axis of 

 which passes through the bottom, and carries, underneath the hatching appa- 

 ratus, a horizontal branch. At the end of the latter there is a chimney which, 

 at a given temperature, is brought over the flame and diverts the hot air from 

 the chimney which is placed in the water of the apparatus. 



Prof. Theodore Schwann, Liege. 



395Oa. Apparatus for Aerating the water in Aquaria. 



Prof. U. J. Van Ankum, .Director of the Zoological 

 Laboratory of the University of Groningen. 



3950b. Elevations and Plan of the Laboratory for 

 Biological Research, presented to the Royal Gardens, Kew, by 

 T. J. Phillips Jodrell, Esq. H.M. Board of Works. 



3950c. Model of a Cupboard 3M1" high; 2' broad; 1 

 deep, enclosing 2 cylinders. 



1. Complete, with 4 circular shelves. 



2. In section, to show the internal structure of the whole. 



Laur Esmark, Christiania. 



The shelves are made to save room in museums in arranging specimens 

 preserved in spirits of wine. The cylinders are to be turned round, so that the 



