Journal of experimental zoology . W^4. #& ««»SaMBJ»fr-;-:--W«t»»(»«3F; 35 34 503 PLATE 5 EXPLANATION OF FIGURES 37 Cross-section of a blue barb and barbules (bird 1028 .-1) showing charac-teristic distribution of pigment. X 480. 38 Cross-sections of a curved (A) and a hooked (B) barbulc, showing char-acteristic pigment granules and manner of clumping. X 1100. 39 Apex of barb from blue feather (1028 A). This represents all the pigmentin the barb. X 1100. 40 Portion of barbule from blue feather (265 A) showing the characteristicclumping of the pigment. X 430. 41 and 42 Portion of pigment masses
Journal of experimental zoology . W^4. #& ««»SaMBJ»fr-;-:--W«t»»(»«3F; 35 34 503 PLATE 5 EXPLANATION OF FIGURES 37 Cross-section of a blue barb and barbules (bird 1028 .-1) showing charac-teristic distribution of pigment. X 480. 38 Cross-sections of a curved (A) and a hooked (B) barbulc, showing char-acteristic pigment granules and manner of clumping. X 1100. 39 Apex of barb from blue feather (1028 A). This represents all the pigmentin the barb. X 1100. 40 Portion of barbule from blue feather (265 A) showing the characteristicclumping of the pigment. X 430. 41 and 42 Portion of pigment masses from barbulc shown in figure 40, morehighlj magnified. X 1600. 43 Portion of barbule from the base of a blue feather (1063 B). The baseis dun in color. Rod-shaped granules are present. The pigment differs in thisrespect from that in dun birds. X 430. 44 Cross-section of barb and barbules from dun base of blue feather (63 B).The portion of the feather rei)resented here and in figure 43 appears dun onlywhen viewed on dorsal
Size: 1613px × 1549px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904
