ON THE ZOOLOGICAL STATION AT NAPLES. 



19 



difficulties and obstacles have, no less through the great energy of Dr. Dohrn 

 than through the help afforded him from time to time, been overcome ; and 

 the future of the Station seems in every way bright and iiromising. 



The facts which form the subject of the present lleport will best be con- 

 sidered under distinct heads : — 



1. Tlie Nature and Extent of the ivorhing accommodation at the Station. 



At the present time there are in the Station twenty-one working-tables, 

 the number of which will by the end of the year be increased to twenty-four ; 

 of these no less than seventeen are already occupied or bespoken. 



Each table is in itself a condensed laboratory ; and the nature of the ac- 

 commodation offered by the Station to any investigator will perhaps best be 

 shown by the following extract from the form of contract between Dr. Dohrn 

 and the hirer of the table. 



a. The working-table, fully equipped, will be placed at the disposal of the 

 inquirer nominated to occupy it after the interval of a week from the an- 

 nouncement of his coming. 



The equipment consists of :— 



1. The necessary chemical reagents. 



2. The ordinary anatomical and microscopical tools and apparatus. 



3. Drawing-apparatus. 



In detail these are as follows : — 



Mear/ents. 



Alcohol, 70 per cent. 



„ 90 per cent. 



,, absolute. 

 Distilled water. 

 Miiller's fluid. 



Potassic bichromate, 5 per cent. 

 Calcic chloride. 

 Potassic acetate. 

 Alum. 



Gold chloride, 1 per cent. 

 Silver nitrate, 1 per cent. 

 Chromic acid. 

 Perosmic acid. 

 Hydrochloric acid, pure. 

 Acetic acid (conccutrated). 

 Picric acid. 

 Oxalic acid. 



Nitric acid (concentrated). 

 Sulphuric acid (concentrated). 

 Caustic soda. 

 Caustic potash. 

 Caustic, ammonia. 



Olive- oil. 



Pure fat. 



Turpentine. 



Oil of cloves. 



Creosote. 



Chloroform. 



Ether. 



Glycerine. 



Tincture of iodine. 



Berlin blue solution. 



Canada balsam. 



Gum-arabic. 



Beale's carmine solution. 



Hsematoxylin solution. 



,, „ alcoholic. 



Magenta. 

 Picrocarmine. 

 Cement. 

 Wax. 

 Paraffin. 

 Si^ermaceti. 



Instimments. 



Section- cutting knife. 



2 pairs forceps. 



3 pairs scissors. 



3 scalpels. 



2 preparation-needles. 



2 dozen needles. 



