976 SEC. 18. BIOLOGY. 



3811. British Land and Fresh Water Shells, illustrative 

 of Dr. J. Gwyu Jeffreys's " British Conchology." 122 species. 



JL Damon. 



3812. Skeletons. Two specimens of Manis or Pangolin, 

 exhibiting a method of articulating skeletons, by which all the 

 surfaces of the bones can be examined. Invented by Mr. James 

 Flower, articulator to the Royal College of Surgeons/ 



Royal College of Surgeons of England. 



In the larger specimen the parts of the skeleton are in their natural rela- 

 tion, but any portion which may be required for examination can be removed 

 without disturbing the rest, as is shown in the smaller specimen, which is 

 divided into various segments, the individual bones of which are united by 

 flexible wires. 



3815. Case containing twelve Injected Preparations by 



the celebrated Lieberkiihn (born 1711, died 1756) ; each prepara- 

 tion is separately mounted in a brass magnifier with an ebony 

 handle. The Royal College of Surgeons of England. 



The object, which is opaque, is viewed with light concentrated upon it by 

 means of a concave polished metal condenser (known as a " Lieberkuhn "). 

 and magnified by a simple lens adapted to a perforation in the centre of the 

 condenser. 



3813. Carbon Photographs of microscopic objects for pro- 

 jection by the lantern, photographed by F. J. von Kolkoflf. 



Prof. D. Huizinga, Physiological Laboratory of the Uni 

 versity of Groningen. 



3816. Two small Cases with Lieberkuhn's Preparations 

 in microscopes, 



Royal Museum at Casse.l (Director, Dr. Pindcr.) 



The two collections of Lieberkuhn have been made in the earlier part 

 of the 18th century. According to Harting, the Royal College of Surgeons 

 of England possesses a similar one. 



3816a. Microscopical Preparations. No. 1-289. 



I. History of the development of the Cephalopoda. 



II. Microscopical anatomy of the Tunicata. 



III. Histology of the nervous system of the Vertebrata. 



Dr. Michel Oussoff, Russia. 



3816b. Microscopic Preparations. 



Zoology. Preparations of tissues in their normal, and in their 

 morbid state. 



Vegetative physiology. Elementory organs, cells, vessels, com- 

 posite organs, epidermis, stems, roots, organs of reproduction. 



Medicinal substances. Stems, roots, barks, seeds, salts used in 

 pharmacy. 



