1881.] NATURAL SCIENCES OF PHILADELPHIA. Y3 



Fig. 18. Section through middle of nest, showing the gate 

 architecture. G, gate; X, nozzle; A, arm of the gate gallery 

 terminating in the vestibule V. a, 6, c, branching galleries. 

 Page 32. 



Fig. 10. A similar section of another nest. Letters as above; 

 E, a small room, with gallery/!, leading downward. 



Fig. 20. Similar section of another nest. The main gallerj^ 

 branches to the right, and passes behind the gate, b, &, 6, into room 

 A. E, C, small bays or rooms; D, D, ee, curved and branched 

 gallery on the same plane, with openings downward g, gr, g. 

 Page 33. 



Fig. 21. A honey-room, HR ; g; gallery leading into the gate 

 gallery, G ; ug, unbroken part of same ; B, small bay -room. 

 Page 34. 



Fig. 22. Termination of excavated nest, 6 feet 10 inches from 

 gate. 2 feet 5 inches below surface. ^ y, galler}^ entrance; C, 

 •Queen-room, 4 inches diameter. E, Small bay-room, apparently 

 beginning of a chamber ; t (/, terminal gallerj-, running upwards 

 as though the ants were in process of excavating a room resem- 

 bling C. Page 36. 



Fig. 23. Sloping section through middle of nest, showing rela- 

 tion of gate to the upper series of galleries and rooms. A, B, 

 hone3M'Ooms ; ar, y, z, main galleries; 1, 2, 3, side openings. 

 Page 33. 



Fig. 24. A honey-bearer regurgitating hone}' from her crop at 

 the solicitation of hungry workers. Page 46. 



Fig. 25. Sentinels on guai'd at the gate. Page 20. 



Plate YI. 



Fig. 26. A queen dragged home b}^ a worker. Page 38. 



Fig. 27. A honej^-bearer dragged and pushed by a worker-major 

 and dwarf from a broken room into a galler}^ Page 39. 



Fig. 28. A honey -bearer under a " land.slide," one worker look- 

 ing on, curious but inactiA'e, another on the clod at her toilet. 

 Page 41. 



Fig. 29. Queen surrounded b}' her "court " or body-gunvd of 

 attendant workers. Page 38. 



Fig. 30. Workers carrying a pebble up the mound. 



Fig. 31. Honey-bearer parti}' buried alive under pellets brought 

 up by mining workers. Page 40. 

 6 



