The two electromagnetic calorimeters each made of 200 lead glass blocks used at SLAC to discriminate between electrons and pions and to measure electron energies are described. Procedures to reconstruct electron showers and to calibrate calorimeters are treated as well as the calorimeter performance. (author). 6 refs., 10 figs.
Borel, H; Grenier, P; Le Meur, J; Lombard, R; Lugol, J C; Marroncle, J; Morgenstern, J; Mouly, J P; Paul, B; Staley, F; Terrien, Y;  Breton, V; Comptour, C; Crouau, M; Fonvieille, H; Roblin, Y; Savinel, G;  Gearhart, R 
- CEA Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France). Dept. d`Astrophysique, de la Physique des Particules, de la Physique Nucleaire et de l`Instrumentation Associee
- Clermont-Ferrand-2 Univ., 63 - Aubiere (France)
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)