brief sunimarv of an arcoiiiii ni iln- ucil- oi tlio Henvor Basin, publislunl 

 in the I*nt<jjn'ss Koport <»f tin* < >ni(«' <»f Iiiif^ation Iniiniry of this I )ri(ait- 

 ment (see Expoiimout Station Ifcconl. vol. iii. p. .{-.S); and statiMiients 

 foncernino; the wells in the San Luis liasin, largely derived from receut 

 investij^ation.s by the author. The San Luis Valley has a mean eleva- 

 tion of over 7.~)0I) feet, and is surrounded by tin* hijrhest mountains in 

 tlic State. The rainfall is scanty, but with the aid of irrigation from 

 tilt- IJio Grainle Kiver large crops, especially of cereals and potatoes, 

 are grown. The first well was dug in ISST, but there are now pr<»bably 

 as many as L',OOU. Many of thes*- wells are shallow and incxi)ensive, 

 but at Alamosa one well obtains its flow from a depth of 932 feet. The 

 t<'niperature of the water, as determined for nearly 1(K> wells in difter- 

 ent parts of the valley, varies from 4U.2- F. at s."* feet to 74.7'^ at 9,'iL* 

 feet. The pressure varies from 12 to oO feet. The wells are situated 

 in the basin of an ancient lak<'. ^btst of the wells have be<Mi sunk for 

 domestii- purposes, though where the flow is large they are used to 

 some extent for irrigation. 



Connecticut Storrs Station, Third Annual Report. 1890 (pp. 200). 



Ki:i'()iM' or i:\i;( iTivi: CMMMriTKK (pp. 5-7). — Brief general stale 

 ments regarding the per>Miiiiei ainl operations of the station. 



IvKPoKT OF Tkkasi i:i:i:. H, ('. Mii.ks (p]). 7. S). — A statement oi 

 n-ceipts and expenditures for the li.«scal year ending June 3(>, l.S!»o. 



llKPOKT or DiiJix'TOK, W. (). Atwatku, Ph. I), (pji. 9-11). — A 

 brief review <)\' the lines of investigation followed at the station fluring 

 the year. 



Acquisition <»i' ATM<»si>in:uic mtkowkn by plants, W. n. 

 Atwatkk, IMI. I).. AM) ('. I). Woods. H. S. (pp. 12-14). — A sluut 

 report is given of studies on the acquisition of atmospheric nitrogen by 

 scarlet clov«'r, imarnat*' clovi>r. Japan <'lover, alfalfa, yellow lu)»in«', 

 soja beans. re<l eyed lieaus, millet, and butkwheat. The jdants W4're 

 f^rown in .sea saml. all being '•sui>]>lied with the neces.sary amount of 

 plant food, with tlie e\e«']>tion of nitrogen, and to .^<»nie of the jdants 

 nitrogen was supplied in the form of calcium and potas.sinm nitrates. 

 Kather more than hall ni the jilants were inoculated with infusions 

 prejiared by treating soil taken from lu'ar the roots of growing i)lants 

 of the same or allied .species.'' The alfalfa "made oidy a small gi'owlh 

 (luring the suninier, and the roots are b«'ing wintereil over'' with a view 

 to continuing the experinn-nt another season. 



On tlio wliolf till- scisons rt'siilt.s werr lu-jjativo r.tthfr tliaii jmsitivo. A fow 

 Itism plants, with a fair iiiimlnT of root tiihrnlos. j;avi» :v gain of several inilli);raiiis 

 of nitrogen. For tin- most part the nitrogen -fi-d plants showed a very large loss of 

 nitrogen, probalily owing to deeompositiou of the nitrates feil. 



It is not thought that the negative results ohtaineil with these ditTeront species of 

 legumes indirate that the plants may not. under favoralde circnmstanees, aiquiro 

 atmospheric nitrogen ; but they seoni to ns to imply that, while we have learned 



