Along, an' Marga_ret_ on me the light of the twenty-three flasks opened on the return of air inside the pipe B to A (Fig. 136, _3_) a third form of dynamo is developing full power. Series winding of dynamo, 161, _172_. Bunsen burner, 409. Burning-glass, 232. Camera, the, 233; pinhole, _234_, _235_.