334 REPORT — 1872. 



Mr. Pringle, also at Bekul, saw many lines flash into the field of an 

 analyzing spectroscope, carried by clockwork, at the end of totality. 



Captain Fyers, the Surveyor-General of Ceylon, observing with an inte- 

 grating spectroscope, saw something hke a reversal of all the lines at the 

 beginning, but nothing of the kind at the end. 



_Mr. Fergusson, observing with an instrument of the same kind, saw reversal 

 neither at the beginning nor the end, though during totality he saw more lines 

 than Captain Eyers. 



Mr. Moseley states that at the beginning of the eclipse he did not see this 

 reversal of lines. Whether it was visible at the end he could not tell, because 

 at the close the slit had travelled off the edge of the moon. 



Prof. Eespighi, using no sHt whatever, and being under the best conditions 

 for seeing the reversal of the lines, certainly did not see it at the beginning ; 

 but he considers he saw it at the end, though about this he is doubtful. 



From the foregoing general statement of the observations made on the 

 eclipse of last year, it wiU be seen that knowledge has been very greatly 

 advanced, and that most important data have been obtained to aid in the 

 discussion of former observations. Further, many of the questions raised by 

 the recent observations make it imperatively necessary that future eclipses 

 should be carefully observed, as periodic changes in the corona may then 

 possibly be found to occur. In these observations the instruments above 

 described should be considered normal, and they should be added to as much 

 as possible. 



Preliminary Report of a Committee, consisting of Professor Michael 

 Foster, F.R.S., Professor W. H. Flower, F.R.S., and Benjamin 

 LowNE, M.R.C.S., appointed for the purpose of making Terato- 

 embryological Inquiries. 



Mr. Lowira reported on two forms of Incubators. He thought from his 

 experiments that to insure success the heat must be apphed above the egg, 

 and that the death of all those which he placed in an incubator heated beneath 

 was due to convection. 



Death took place in all these cases from rupture of the yelk- vessels between 

 the third and tenth day. 



Other deficiencies were observed in many embryos ; but owing to the im- 

 perfect condition of the incubators in use, Mr. Lowne was not sufficiently 

 satisfied as to their nature. 



Mr. Lowne believed he had adopted a plan of incubator, in which the 

 temperature is regulated by an air-thermometer and the heat is applied above, 

 which would enable him to arrive at satisfactory results in the course of 

 next year. 



