20 



REPORT — 1875. 



1 Drawing-tablet. 

 G Drawing-pins. 

 4 Drawing-pencils. 

 Blotting-paper. 

 Colour-box and brushes 



Braiving-Aiypa ratus . 



Eule. 



Drawing-instruments. 

 3 gold pens. 

 Ink eraser. 



Olass Listruments. 



1 dozen simple glass slides. 



1 large hollowed glass slide. 



1 small oval hollowed glass slide. 



1 trough object-holder. 



50 thin cover-glasses. 



1 lamp. 



1 measure-glass. 



1 pipette. 



3 glass tubes. 



3 glass rods. 



6 stoppered bottles. 



1 "wash-bottle. 



1 tray with reagents. 



3 beakers. 



5 glass plates. 



1 microscope-shade. 



1 instrument-shade. 



Miscellaneous, 



2 porcelain capsules. 



3 paint-saucers. 



1 dozen filter-papers. 

 1 ijreparation- trough. 

 1 can. 

 1 washing-basin. 



2 towels. 



1 slate. 

 India-rubber tubes. 



2 portable tanks for holding 

 smaller animals. 



The Station also possesses : — 



a. A number of special instruments and pieces of apparatus which arc not 

 in general use, but only required occasionally. These accordingly are not 

 supplied to each table, but are regarded as belonging to all the tables in 

 common. 



Microscopes are not provided, it being supposed that each investigator 

 will possess an instrument of his own, to the use of which he is accustomed. 



h. Each working-table is provided with a number of working experi- 

 mental aquaria, and with a constant stream of sea- water ; these are entirely 

 at the disposal of the occupant of the table for his investigations. 



c. The animals serving as materials for study are provided by the Station, 

 and as constant a supply as circumstances will admit is kept up during the 

 investigation. Not only so, but the occupant of the table can, if he pleases, 

 take home with him, on his departure from Naples, a number of scientifically 

 preserved specimens, to enable him to comjjlete or continue his research. 



The extent of this supply of animals is of course dependent on the variety 

 (or abundance) of the specimens and the concurrent demands of otlier 

 investigators. 



d. The large aquarium of the Station can be used freely by the occupants 

 of tables for suitable purposes; for instance, for the study of the habits of 

 animals. 



e. The Library * (the catalogue of which has been, sent to all academies 

 and universities), placed close to the Laboratory, is accessible to all occupants 



•* The Library lias already, even iu so short a time, become a fairly extensive one, 

 being especially rich m embryological works. A copy of the Catalogue may be seen in 

 fcieoolcl and IioUiker 3 ' Zeitschrift,' Bd. sxv. Dr. Dohrn will thankfully receive additions. 



