Reactions to light in Planaria maculata with special reference to the function and structure of the eyes (1918)
Taliaferro, William Hay, 1895- · Baltimore · leaf 62
om the lighteach time without trial movements, approximately nine-ty camera lucida drawings representing the effect ofchanges in the direction of illumination and the reac-tions of planaria were made. aII of these are essen-tially the same as the one reproduced in figure 4.Moreover, the process of… … Figure 4.Oaaera luoida drawing ofthe path of a planar!an showing therelation between changes in the di-rection of illumination and the di-rection of looornotion. C-E, path ofspeoiiaen; R.R.H*, points at whichwandering reflexes took place.Arrows 1-5 indicate suooessive direc-tions of rays of light,…
