F . B. in a to of of in in be 5 as is of a a in 967, to a A. V. P. S. T. A. V. A. A. V. F. I. At of by 1. a of of to so as to in of of to of to to of to by on of 969 VC of to At in of 00 mm 00 mm as as a 00 500 24 h). of 500 of in 000 be of in A in 969 (1). or is of of It is a no o. 0056 of g/. At a 70kg/) in of is a on 0 an .5 is 5is an of of of of is of It be by of in of is 2) is 5 t. 3 be i 3, 71972. 9 1972 a 227 g/7N. Y. 10011. be of A of is 147 ,3 500 l 2 3 45 6 O 9 8 7 I 2 I. i) 2) of 3) 4) 5) 6) 7) 8) 9) 2. a) b) of is 3. in at a 05 is of a of on of 00 mm it 00 g, 00 mm 60 g, 00 g, 00g. is in a it it is in To of at is to is on 5is a is on so as to a kg/. To a is so it of A of is on in is to of -3 h at of 70of is to is an is at is to VC 4) 2mm on of , it so on so on on a 50 x 50 mm a kg on of to on of on 5of be -7 0 -6 mm on on kg/ in on a -8 cm to 5) h up to a of 80by a At of on 48 3 tc 160 _ . =.: .iu/ 0 20 40 60 80 4 5 3. 1) 2) 3) 4) 5) 4. 1) 2) 3) 4) 5) 5. 200 mm 1) 2) 0 in to 0it in of in in to of in up of of of on of of by of a in of of of of a of of of in of in of in it is to of of of of at of of 5005075000in to of in to to to in to to of at in in be 1 at of in of If to of a a in If 10 in to up to of of of in of is 5. in of of of .9 g/. to a of in a a 49 no 1 of is by a in of in no is a of by is