THE AMERICAN NATURALIST [\'ot.. XL! 



B. DEPARTMENT CATALOGUE. 



The department catalogue has the cards arranged numerically 

 in chronological order and should contain concise information 

 concerning each specimen, or group of specimens belonging to 

 the same species which were obtained at a definite time and place. 

 In the smaller museums the material may be grouped under depart- 

 ments of Zoology, Botany, Paljeontology, etc. as represented by 



the Accession Catalogue (Fig. 1) each with its separate depart- 

 ment catalogue. In the larger museums, liowencr, it will often 

 be advisable for each department to have several sub-depart- 

 ments or group catalogues having the rank of (lej)artineiits. For 

 example the department of Zoology may maintain ( ataio-iies of 

 Vertebrate and Invertebrate Zoology, or of Pathological prepara- 

 tions, Neurological specimens, etc., or on a systematic ha-^is it 

 may have a catalogue for each phylum or branch of the animal 

 and plant kingdoms. The cross-reference classification by means. 



