CHRONOLOGICAL TABLES. 



691 



1868 1869 



13 



3630 



1 



1870 



1871 



1872 



1873 



11 



Gerber 



14 



Photo 



2 



12 



•Zeitii 

 12 



15 



graphi 



3 



1.1 IG 



IG 



sche Z 



4 



17 

 eitung, 



5 



1874 



1875 



18 



Ber 



c 



ng. 



dustrie-Zeitu 



13-14 



fur Ru 



7 



neuest 



G 



10-18 

 I'histo 

 4 6 

 torium 

 4 



lin M 



4 



I.S-IC 



■sland. 



8 

 en Erf 



7 



10-21 



ire pos 



5 6 

 furph 



5 

 ess. of 



ng- 

 11 



17-18 



9 



indun 



22-24 

 itive e 



6 



ysikali 







Math. 



gen - 

 9 



2.T-27 

 t philo 



1 

 scheT 



7 



Mes 

 1 



Ki 



2me 



1-2 



28-30 



sopliiq 



2 

 echnik 



8 

 sengcr 



2 



lin. 



7] 



1876 



1877 



sene. 

 3-4 



12 



Gcbie 

 11 



31-33 



ue de 



3 



[Expe 



9 

 of M 



13 



te des 



12 



Kosm 

 34-30 

 I'hom 



4 

 riment 



10 



athem 



4 



1878 



14 



Gewer 



13 



)s, les 



37-39 



me. 



5 



al-Phy 



11 

 atics. 



15 

 bewese 



14 



mond 



40-42 







sik.] 



12 



1879 



1880 



23 24 



20 



N one 



12 



4(V.18 



21 



Folgo 



13 



? See note on page 17.1. 



