800 Analyses of Books. [April, 



50". The time of high water at the syzygies at Nangasaky is T*" 

 52' 41". 



Vol. III. 



1. Method of integrating the Differential Equation dy + yy 

 «^ ^ = r-xVr-^^4 u- ByL.Euler. P. 3. 



2. Concerning a remarkable Paradox that occurs in the analysis 

 of Maxima and Minima. By L. Euler. P. 16. 



3. Of the Summation of Series that come under this Form : 



^+*+7+fd + -5 + l5+'^^- ByL.Euler. P. 26. 



4. Of the Transformation of Functions involving two Variables 

 when two other Vaiiables aie introduced in their Place. By L. 

 Euler. P. 43. 



5. Solution of a curious Question in the Doctrine of Combina- 

 tions. By L. Euler. P. 57. 



6. Of the Division of a Rhomboid into four equal Parts, by two 

 straight Lines cutting each other at right Angles. By Nicolas 

 Fuss. P. 65. 



7. Illustn'.lion of the Method of integrating the Differentia! 

 Equation y d y + Vydx-\-Qdx~o, P and Q being lunc- 

 tions of X. By Nicolas Fuss. P. 75. 



8. Solution of some Problems relative to the developement of 

 Curve Lines of Double Curvature. By Nicolas Fuss. P. 'Jl. 



9. Some 'JVigonometrical Series deduced from the inverse 

 Theorem of Taylor. By M. Pfafl'. P. 108. 



10. Of the mutual Relation between some Integrals. By C. F. 

 Kausler. P. 114. 



11. Summation of innumerable Series derived from the princi- 

 ples of the Integral Calculus. By C. F. Kausler. P. 137- 



12. Observations made at the Observatory of the Academy. By 

 F. T. Schubert. P. 152. 



13. Continuation of the Dissertation on the Pollen of the An- 

 theree of Plants. By I. T. Koelreuter. P. 15!>. This is a minute 

 description of the figure of the pollen of a great number of plants, 

 at least 300 species. It is scarcely susceptible of abridgment. 



14. Description of the Lilies of Japan. By C. P. Thunberg. 

 P. 200. In this paper we have a description, with figures, of eight 

 species of lily ; namely, lilium pomponicum, liiium laucifoiium, 

 lilium elegans, lilium Icongiflorum, lilium maculatum, lilium japa- 

 ricum, liiium speciosum, lilium cordifolium. 



15. On the aluminous Stones of Mount Ararat. By B. Sever- 

 guine. P. 209. Five varieties of alum stove are described, quite 

 different in appearance from the aldm stone of Tolfa. The first 

 variety has the aspect of jasper, the second of opal, the third of 

 breccia. 



U). Remarks on the Cranium of the Musk-bison. By N. Ozeret- 

 skovsky. P. 215, This animal no longer exists in Siberia j but 



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