Selected engineering papers /

no.1-32 1922-1925; v.1-15(1923-1924); v.1; v.2; v.3; v.4; v.5; v.6; v.7; v.8; v.9; v.10; v.11; v.12; v.13; v.14; v.15; v.16; v.16-32(1924-1925); v.17; v.18; v.19; v.20; v.21; v.22; v.23; v.24; v.25; v.26; v.27; v.28; v.29; v.30; v.31; v.32; v.33; v.33-45(1926-1927); no.33-66 1925-1928; v.34; v.35; v.36; v.37; v.38-39; v.40; v.41; v.42; v.43; v.44; v.45; v.46; v.46-60(1927-1928); v.47; v.48; v.49; v.50; v.51; v.52; v.53; v.54; v.55; v.56; v.57; v.58; v.59; v.60; v.61; v.61-75(1928-1929); no.67-103 1928-1930; v.62; v.63; v.64; v.65; v.66; v.67; v.68; v.70; v.71; v.72; v.73; v.74; v.75; v.76; v.76-90(1929-1930); no.104-135 1930-1932; v.77; v.78; v.79; v.80; v.81; v.82; v.83; v.84; v.85; v.86; v.87; v.88; v.89; v.90; v.91-103(1930); v.91; v.92; v.93; v.94; v.95; v.96-97; v.98; v.99; v.100; v.101; v.102; v.103; v.104-115(1931); v.104; v.105; v.106; v.107; v.108; v.109; v.110; v.111; v.112; v.113; v.114; v.115; v.116-130(1931-1932); v.116; v.117; v.118; v.119; v.120; v.121; v.122; v.123; v.124; v.125; v.126; v.127; v.128; v.129; v.130; v.131-145(1932-1933); v.131; v.132; v.133; v.134; v.135; v.136; v.137; v.138; v.139; v.140; v.141; v.142; v.143; v.144; v.145; v.146; v.146-160(1933-1934); v.147; v.148; v.149; v.150; v.151; v.152; v.153; v.154; v.155; v.156; v.157; v.158; v.159; v.160; v.161-170(1934); v.161; v.162; v.163; v.164; v.165; v.166; v.167; v.168; v.169; v.170; v.171; v.171-180(1934-1935); no.172-180 1934-1935; v.172; v.173; v.174; v.175; v.176; v.177; v.178; v.179; v.180; no.136-171; 1-32 index(1924-1925); 67-103 index(1930)