METEOROLOGICAL OBSERVATIONS. 119 



Makch 



6. remarkable appearance ever observed. As seen, it was ellipti- 

 cal and colored ; its long diameter was about 30 to 36°, and 

 lateral with the beholder ; its short diameter intersected the 

 parhelia of the inner halo of 22°, both above and below the sun. 

 The next halo surrounded the sun, of 46° of diameter, colored 

 laterally, below intersecting the horizon and above reached 

 well nigh the zenith. The next was uncolored, perfect, and of 

 46°, extending from the sun to beyond the zenith ; it evidently 

 was a secondary halo of the large or outer halo that encircled 

 the sun. At the points that it intersected the colored halos, it 

 produced faint but perceptible parhelia, or mock-suns; laterally 

 with the Sim there were also partial uncolored halos made from 

 the larger one, whose segments were of halos of 46°; these 

 segments, where crossing the colored halos, produced faint and 

 almost imperceptible mock-suns, so that at one time there were 

 to be seen six halos, perfect and imperfect, and ten parhelia, or 

 mock-suns, colored and uncolored. 



13. Northeast rain ; ice moving in the river. 



14. Ice nearly all out of the river. 



20. Thunder shower ; very sharp lightning. 



28. Good sleighing on the pavements ; sleighs out. 



31. First spring-like day. 



April 



3. Swallows seen first for the season. 



6. Frost just out ; froze two and one-half feet deep. 



18. Soft-maple trees in blossom. 



19. Navigation opened with Saginaw. 

 23. Navigation opened with Buffalo. 

 25. Navigation opened with Oswego. 

 30. Early cherry trees in blossom. 



Mat 



3. Frost and some ice in the morning. 



19. Trees nearly aU in ftdl foliage. 



22. Frost in the morning. 



27. A very low barometer ; 8:30 A. M., 28.56. 



