1) “Studies on Error Propagation by Simulation Model” 
E. K. Back (Vol. 12, No. 4, 1973) 
2) “Block to Block Triangulation” 
N. Ogawa, S. Tanaka and Y. Endo (Vol. 13, No. 4, 1974) 
3) “A Statistical Study on the Closing Error of the Analytical Aerial Triangulation” 
M. Akiyama, Y. Ozaki and K. Nakajima (Vol. 14, No. 1, 1975) 
4) “Study on Analytical Orientation in Space by means of Orthogonal Formation” 
Y. Bock-Mo (Vol. 14, No. 2, 1975) 
Chapter IV 
Maps produced by photogrammetric methods during the period 1972-1975 are 
listed in Table II. 
Papers of the field of commission IV printed in the journal of the Japan Society 
of Photogrammetry in this period are: 
1) “On the Accuracy of Contours in Photogrammetry” 
Y. Ozaki (Vol. 12, No. 4, 1973) 
2) “A study on the Automatic Formation of Contour Map by Continuous Dots" 
K. Asakura (Vol. 13, No. 3, 1974) 
3) “A new Method for Making a Map by Using Dot Representation” 
K. Asakura (Vol. 13, No. 4, 1974) 
4) “A Study of Automation of Aerial Photo Survey” 
H. Taura and Y. Suzuki (Vol. 14, No. 1, 1975) 
Table II 
scale | 1/1,000 | 1/2,500 | 1/5,000 | 1/10, 000 | 1/25, 000 
| | 
103, 3, 740 | 
area km? | 5,700 | 46,720 | 77,050 | 42,380 
Chapter V 
Forming a contrast to the tendency of fixation of the methods in the daily work of 
map production, subjects of application of photogrammetry for nontopographic 
purposes increase in number considerably and methods applied show many varieties 
as follows: 
1) “On the Aerial Photogrammetric Investigation of Reinforced Concrete Build- 
ings Tilted by the Niigata Earthquake” 
I. Takahashi (Vol. 11, No. 2, 1972) 
2) "Orthophoto-DTM System" 
K. Nakamura, M. Yamakami, K. Miki, T. Harima, Y. Kassai and S. Waka- 
bayashi (Vol. 11, No. 3, 1972) 
3) "Methods of Analytical Orientation of Individual Photographs in Two-Medium 
Photogrammetry and Practical Test" 
A. Okamoto and C. Mori (Vol. 12, No. 1, 1973) 
4) "A Study on Accuracy for Volume Calculation of Earth Works by Mesh 
Method" 
S. Murai, S. Ohbayashi, T. Shinoda and H. Takahashi (Vol. 12, No. ,1 1973) 
5) "Numerical Analysis of Landslide Degradation Volume in the River Mibu 
e M ones