Natural History & General Biology

Volume, Title, and Unique Books data collected on May 31, 2007.
Circulation statistics for the ALC fiscal year ending May 31, 2007.

Volume Count and Average Age

Counts and average ages of volumes (individual barcoded items) in Natural History & General Biology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899	24		1	4	4	33
1900-1909	9		6	6	1	22
1910-1919	12		6	2	2	22
1920-1929	25		5	4	3	37
1930-1939	34		3	6	5	48
1940-1949	57		20	6	7	90
1950-1959	204	2	53	93	38	391
1960-1969	448	14	199	294	73	1,028
1970-1974	193	10	135	233	45	618
1975-1979	107	14	81	132	52	386
1980-1984	112	11	83	136	87	429
1985-1989	81	17	102	164	28	392
1990-1994	90	58	55	68	73	344
1995-1999	89	63	53	90	79	374
2000-2004	77	38	77	60	75	327
2005	5	8	23	3	8	47
2006	3	2	10	5	3	23
2007	1	3				4
Totals	1,571	240	912	1,306	583	4,615
Average Age	1969	1991	1977	1976	1981	1975
Percent of Collection	0.56%	0.09%	0.58%	0.94%	0.76%	0.50%

Title Count and Average Age

Counts and average ages of titles (excludes duplicate copies) in Natural History & General Biology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899	20		1	2	3	24
1900-1909	8		5	6	1	20
1910-1919	12		6	2	2	22
1920-1929	24		5	4	3	33
1930-1939	30		3	5	5	38
1940-1949	37		20	6	7	61
1950-1959	188	2	47	80	38	275
1960-1969	378	14	186	276	66	711
1970-1974	159	10	130	224	42	470
1975-1979	98	14	78	121	44	316
1980-1984	104	11	81	128	86	324
1985-1989	78	17	95	148	27	296
1990-1994	85	49	55	63	73	281
1995-1999	83	52	49	87	77	285
2000-2004	43	30	73	56	68	237
2005	5	7	23	3	8	43
2006	3	2	10	5	3	22
2007	1	2				3
Totals	1,356	210	867	1,216	553	3,461
Average Age	1969	1990	1977	1976	1981	1976
Percent of Collection	0.60%	0.11%	0.62%	0.97%	0.80%	0.54%

Unique Books Count and Average Age

Counts and average ages of unique books (titles held by only one ALC library) in Natural History & General Biology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU
1400-1699
1700-1799
1800-1899	15				1
1900-1909	7		4	6	1
1910-1919	12		6	2	2
1920-1929	19		2	4	1
1930-1939	25		1	2	1
1940-1949	25		14	1	4
1950-1959	126	2	16	35	13
1960-1969	220	6	75	139	20
1970-1974	86	4	72	144	21
1975-1979	65	11	52	93	33
1980-1984	65	6	36	70	54
1985-1989	53	7	52	86	9
1990-1994	56	31	31	34	36
1995-1999	53	27	31	43	33
2000-2004	26	17	53	28	33
2005	5	6	19	3	4
2006	3	2	7	4
2007	1	1
Totals	862	120	471	694	266
Average Age	1968	1991	1979	1976	1982

Total Circulation

A count of charges and renewals for Natural History & General Biology. This count only includes circulation of bound monographs, CDs, videos, and DVDs.

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	33	7	5	1	0	0	46
APL Items	1	108	7	3	0	0	119
HSU Items	3	0	48	1	0	0	52
McM Items	2	5	2	35	0	0	44
HPU Items	0	0	1	0	0	17	18
Totals	39	120	63	40	0	17	279

Circulation by Item Age

A count of charges and renewals for Natural History & General Biology, broken down by item age and item owner. This count only includes circulation of bound monographs, CDs, videos, and DVDs, and only items which have a valid date in their DATE_1 field.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899
1900-1909
1910-1919
1920-1929
1930-1939			1	1		2
1940-1949	1					1
1950-1959	2	2		3	2	9
1960-1969	2	4	1	4	1	12
1970-1974		4	5		1	10
1975-1979	6	2	1	3		12
1980-1984	3	2	7	1	2	15
1985-1989	3	17	3	2		25
1990-1994	3	16	3	6	2	30
1995-1999	10	41	7	4	3	65
2000-2004	12	26	18	15	4	75
2005	3	2	2		3	10
2006	1		4	5		10
2007		3				3
Totals	46	119	52	44	18	279
Percent of Circulation	0.13%	0.02%	0.23%	0.60%	0.36%	0.04%

Non-Circulating Use

A count of Non-Circulating usage for Natural History & General Biology (as recorded by the circulation "Mark Item Used" command). This count only includes bound monographs, CDs, videos, and DVDs.

ACU	APL	HSU	McM	HPU
22	0	65	41	5

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