Report on the Solar Eclipse Expedition to Pulgaon. 43- 



" Total Solar Eclipse of 1898, January 22. Preliminary Report 

 on the Observations made at Pulgaon, India," By Captain 

 E. H. HILLS, R.E., and H. F. NEWALL, Sec. R.A.S. Re- 

 ceived May 25, 1898. 



(PLATES 13.) 

 CONTENTS. 



I. Origin of the expedition and general preparations. By Captain Hills and 



H. F. Newall. 

 II. Totality at Pulgaon. By Captain Hills and H. F. Newall. 



III. The double tube camera. By Captain Hills. 



IV. The spectroscopic cameras. By Captain Hills. 



V. The spectroscope with two slits. By H. F. Newall. 

 VI. The objective grating telescope. By H. F. Newall. 

 VII. Polariscopic observations. By H. F. Newall. 



I. Origin of the Expedition and General Preparations. 

 By Captain Hills and H. F. Newall. 



This expedition was one of those organised by the Joint Per- 

 manent Eclipse Committee of the Royal Society and Royal Astro- 

 nomical Society, funds being provided from a grant made by th& 

 Government Grant Committee. 



The observers are indebted to the Great Indian Peninsular Rail- 

 way Company for the carriage of the instruments at reduced rates 

 between Bombay and Pulgaon, and for a considerable reduction of 

 fares to the observers for this journey. 



Observers. The party consisted of : 



Gaptain E. H. Hills, R.E., Instructor in Chemistry and Pho- 

 tography at the School of Military Engineering, Chatham. 

 H. F. Newall, Sec. R.A.S. , Cambridge Observatory. 



(In what follows these will be designated by the initials H 

 and N.) 



It had originally been arranged that Dr. E. J. Stone, Radcliffe 

 Observer, Oxford, should be a member of the party. The vacancy 

 caused by his lamented death was not filled, as it was decided to use 

 the skilled assistance which could be obtained locally in order to 

 carry out part of the programme of work that Dr. Stone intended to 

 attempt, namely the obtaining of twelve photographs of the corona 

 with the double tube camera. 



Local Arrangements. When the preparations were being made for 

 this expedition the Surveyor- General of India intimated that his 

 department would be willing to give what assistance they could. 

 This generous offer was gladly accepted by the Joint Permanent 



